Section 155.420 - Special enrollment periods(a)General parameters.(1) The Exchange must provide special enrollment periods consistent with this section, during which qualified individuals may enroll in QHPs and enrollees may change QHPs.(2)Definition of dependent. For the purpose of this section, "dependent", has the same meaning as it does in 26 CFR 54.9801-2 , referring to any individual who is or who may become eligible for coverage under the terms of a QHP because of a relationship to a qualified individual or enrollee.(3)Use of special enrollment periods. Except in the circumstances specified in paragraph (a)(4) of this section, the Exchange must allow a qualified individual or enrollee, and when specified in paragraph (d) of this section, his or her dependent to enroll in a QHP if one of the triggering events specified in paragraph (d) of this section occur.(4)Use of special enrollment periods by enrollees.(i) If an enrollee has gained a dependent in accordance with paragraph (d)(2)(i) of this section, the Exchange must allow the enrollee to add the dependent to his or her current QHP, or, if the current QHP's business rules do not allow the dependent to enroll, the Exchange must allow the enrollee and his or her dependents to change to another QHP within the same level of coverage (or one metal level higher or lower, if no such QHP is available), as outlined in §156.140(b) of this subchapter, or, at the option of the enrollee or dependent, enroll the dependent in any separate QHP.(ii)(A) If an enrollee or their dependents become newly eligible for cost-sharing reductions in accordance with paragraph (d)(6)(i) or (ii) of this section and the enrollee or their dependents are not enrolled in a silver-level QHP, the Exchange must allow the enrollee and their dependents to change to a silver-level QHP if they elect to change their QHP enrollment; or(B) Beginning January 2022, if an enrollee or their dependents become newly ineligible for cost-sharing reductions in accordance with paragraph (d)(6)(i) or (ii) of this section and the enrollee or his or her dependents are enrolled in a silver-level QHP, the Exchange must allow the enrollee and their dependents to change to a QHP one metal level higher or lower if they elect to change their QHP enrollment;(C) No later than January 1, 2024, if an enrollee or his or her dependents become newly ineligible for advance payments of the premium tax credit in accordance with paragraph (d)(6)(i) or (ii) of this section, the Exchange must allow the enrollee and his or her dependents to change to a QHP of any metal level, if they elect to change their QHP enrollment; or(D) If an enrollee or his or her enrolled dependents qualify for a special enrollment period in accordance with paragraph (d)(16) of this section, the Exchange must allow the enrollee and his or her enrolled dependents to change to any available silver-level QHP if they elect to change their QHP enrollment. If a qualified individual or a dependent who is not an enrollee qualifies for a special enrollment period in accordance with paragraph (d)(16) of this section and has one or more household members who are enrollees, the Exchange must allow the enrollee to add the newly enrolling household member to his or her current QHP; or, to change to a silver-level QHP and add the newly enrolling household member to this silver-level QHP; or, to change to a silver level QHP and enroll the newly enrolling qualified individual or dependent in a separate QHP;(iii) For the other triggering events specified in paragraph (d) of this section, except for paragraphs (d)(2)(i), (d)(4), and (d)(6)(i) and (ii) of this section for becoming newly eligible or ineligible for CSRs and paragraphs (d)(8), (9), (10), (12), (14), and (16) of this section:(A) If an enrollee qualifies for a special enrollment period, the Exchange must allow the enrollee and his or her dependents, if applicable, to change to another QHP within the same level of coverage (or one metal level higher or lower, if no such QHP is available), as outlined in § 156.140(b) of this subchapter;(B) If a dependent qualifies for a special enrollment period, and an enrollee who does not also qualify for a special enrollment period is adding the dependent to his or her QHP, the Exchange must allow the enrollee to add the dependent to his or her current QHP; or, if the QHP's business rules do not allow the dependent to enroll, the Exchange must allow the enrollee and his or her dependents to change to another QHP within the same level of coverage (or one metal level higher or lower, if no such QHP is available), as outlined in § 156.140(b) of this subchapter, or enroll the new qualified individual in a separate QHP; or(C) If a qualified individual who is not an enrollee qualifies for a special enrollment period and has one or more dependents who are enrollees who do not also qualify for a special enrollment period, the Exchange must allow the newly enrolling qualified individual to add himself or herself to a dependent's current QHP; or, if the QHP's business rules do not allow the qualified individual to enroll in the dependent's current QHP, to enroll with his or her dependent(s) in another QHP within the same level of coverage (or one metal level higher or lower, if no such QHP is available), as outlined in § 156.140(b) of this subchapter, or enroll himself or herself in a separate QHP. (5)Prior coverage requirement. Qualified individuals who are required to demonstrate coverage in the 60 days prior to a qualifying event can either demonstrate that they had minimum essential coverage as described in 26 CFR 1.5000A-1(b) or demonstrate that they had coverage as described in paragraphs (d)(1)(iii) or (iv) of this section for 1 or more days during the 60 days preceding the date of the qualifying event; lived in a foreign country or in a United States territory for 1 or more days during the 60 days preceding the date of the qualifying event; are an Indian as defined by section 4 of the Indian Health Care Improvement Act; or lived for 1 or more days during the 60 days preceding the qualifying event or during their most recent preceding enrollment period, as specified in §§ 155.410 and 155.420, in a service area where no qualified health plan was available through the Exchange.(b)Effective dates- (1)Regular effective dates. Except as specified in paragraphs (b)(2) and (3) of this section, for a QHP selection received by the Exchange from a qualified individual- (i) Between the first and the fifteenth day of any month, the Exchange must ensure a coverage effective date of the first day of the following month; and(ii) Between the sixteenth and the last day of any month, the Exchange must ensure a coverage effective date of the first day of the second following month.(2)Special effective dates.(i) In the case of birth, adoption, placement for adoption, placement in foster care, or child support or other court order as described in paragraph (d)(2)(i) of this section, the Exchange must ensure that coverage is effective for a qualified individual or enrollee on the date of birth, adoption, placement for adoption, placement in foster care, or effective date of court order; or it may permit the qualified individual or enrollee to elect a coverage effective date of the first of the month following plan selection; or in accordance with paragraph (b)(1) of this section. If the Exchange permits the qualified individual or enrollee to elect a coverage effective date of either the first of the month following the date of plan selection or in accordance with paragraph (b)(1) of this section, the Exchange must ensure coverage is effective on the date duly selected by the qualified individual or enrollee.(ii) In the case of marriage as described in paragraph (d)(2) of this section the Exchange must ensure that coverage is effective for a qualified individual or enrollee on the first day of the month following plan selection.(iii) In the case of a qualified individual or enrollee eligible for a special enrollment period as described in paragraph (d)(4), (5), (9), (11), (12), or (13) of this section, the Exchange must ensure that coverage is effective on an appropriate date based on the circumstances of the special enrollment period.(iv) If a qualified individual, enrollee, or dependent, as applicable, loses coverage as described in paragraph (d)(1) or (d)(6)(iii) of this section, or is enrolled in COBRA continuation coverage for which an employer is paying all or part of the premiums, or for which a government entity is providing subsidies, and the employer contributions or government subsidies completely cease as described in paragraph (d)(15) of this section, gains access to a new QHP as described in paragraph (d)(7) of this section, becomes newly eligible for enrollment in a QHP through the Exchange in accordance with § 155.305(a)(2) as described in paragraph (d)(3) of this section, becomes newly eligible for advance payments of the premium tax credit in conjunction with a permanent move as described in paragraph (d)(6)(iv) of this section, and if the plan selection is made on or before the day of the triggering event, the Exchange must ensure that the coverage effective date is the first day of the month following the date of the triggering event. If the plan selection is made after the date of the triggering event, the Exchange must ensure that coverage is effective in accordance with paragraph (b)(1) of this section or on the first day of the following month, at the option of the Exchange. Notwithstanding the requirements of this paragraph (b)(2)(iv) with respect to losses of coverage as described at paragraphs (d)(1), (d)(6)(iii), and (d)(15) of this section, at the option of the Exchange, if the plan selection is made on or before the last day of the month preceding the triggering event, the Exchange must ensure that the coverage effective date is the first day of the month in which the triggering event occurs. (v) If an enrollee or his or her dependent dies as described in paragraph (d)(2)(ii) of this section, the Exchange must ensure that coverage is effective on the first day of the month following the plan selection, or it may permit the enrollee or his or her dependent to elect a coverage effective date in accordance with paragraph (b)(1) of this section. If the Exchange permits the enrollee or his or her dependent to elect a coverage effective date in accordance with paragraph (b)(1) of this section, the Exchange must ensure coverage is effective on the date duly selected by the enrollee or his or her dependent.(vi) If a qualified individual, enrollee, or dependent newly gains access to an individual coverage HRA or is newly provided a QSEHRA, each as described in paragraph (d)(14) of this section, and if the plan selection is made before the day of the triggering event, the Exchange must ensure that coverage is effective on the first day of the month following the date of the triggering event or, if the triggering event is on the first day of a month, on the date of the triggering event. If the plan selection is made on or after the day of the triggering event, the Exchange must ensure that coverage is effective on the first day of the month following plan selection. (vii) If a qualified individual or enrollee, or the dependent of a qualified individual or enrollee, who is eligible for advance payments of the premium tax credit, and whose household income, as defined in 26 CFR 1.36B-1(e) , is expected to be no greater than 150 percent of the Federal poverty level, enrolls in a QHP or changes from one QHP to another one time per month in accordance with paragraph (d)(16) of this section, the Exchange must ensure that coverage is effective in accordance with paragraph (b)(1) of this section or on the first day of the month following plan selection, at the option of the Exchange.(3)Option for earlier effective dates.(i) For a QHP selection received by the Exchange under a special enrollment period for which regular effective dates specified in paragraph (b)(1) of this section would apply, the Exchange may provide a coverage effective date that is earlier than specified in such paragraph, and, beginning January 2022, a Federally-facilitated Exchange or a State Exchange on the Federal platform will ensure that coverage is effective on the first day of the month following plan selection.(ii) For a QHP selection received by the Exchange under a special enrollment period for which special effective dates specified in paragraph (b)(2)(ii) of this section would apply, the Exchange may provide a coverage effective date that is earlier than specified in such paragraph. (4)Advance payments of the premium tax credit and cost-sharing reductions. Notwithstanding the standards of this section, the Exchange must ensure that advance payments of the premium tax credit and cost-sharing reductions adhere to the effective dates specified in §155.330(f).(5)Option for earlier effective dates due to untimely notice of triggering event. At the option of a qualified individual, enrollee or dependent who is eligible to select a plan during a period provided for under paragraph (c)(5) of this section, the Exchange must provide the earliest effective date that would have been available under paragraph (b) of this section, based on the applicable triggering event under paragraph (d) of this section.(c)Availability and length of special enrollment periods- (1)General rule. Unless specifically stated otherwise herein, a qualified individual or enrollee has 60 days from the date of a triggering event to select a QHP.(2)Advanced availability. A qualified individual or their dependent who is described in paragraph (d)(1), (d)(6)(iii), or (d)(15) of this section has 60 days before and, unless the Exchange exercises the option in paragraph (c)(6) of this section, 60 days after the triggering event to select a QHP. At the option of the Exchange, a qualified individual or their dependent who is described in paragraph (d)(7) of this section; who is described in paragraph (d)(6)(iv) of this section becomes newly eligible for advance payments of the premium tax credit as a result of a permanent move to a new State; or who is described in paragraph (d)(3) of this section and becomes newly eligible for enrollment in a QHP through the Exchange because they newly satisfy the requirements under § 155.305(a)(2) , has 60 days before or after the triggering event to select a QHP.(3) Advanced availability for individuals with an individual coverage HRA or QSEHRA. A qualified individual, enrollee, or his or her dependent who is described in paragraph (d)(14) of this section has 60 days before the triggering event to select a QHP, unless the HRA or QSEHRA was not required to provide the notice setting forth its terms to such individual or enrollee at least 90 days before the beginning of the plan year, as specified in 45 CFR 146.123(c)(6), 26 CFR 54.9802-4(c)(6), and 29 CFR 2590.702-2(c)(6) or section 9831(d)(4) of the Internal Revenue Code, as applicable, in which case the qualified individual, enrollee, or his or her dependent has 60 days before or after the triggering event to select a QHP. (4)Special rule. In the case of a qualified individual or enrollee who is eligible for a special enrollment period as described in paragraphs (d)(4), (5), or (9) of this section, the Exchange may define the length of the special enrollment period as appropriate based on the circumstances of the special enrollment period, but in no event may the length of the special enrollment period exceed 60 days.(5)Availability for individuals who did not receive timely notice of triggering events. If a qualified individual, enrollee, or dependent did not receive timely notice of an event that triggers eligibility for a special enrollment period under this section, and otherwise was reasonably unaware that a triggering event described in paragraph (d) of this section occurred, the Exchange must allow the qualified individual, enrollee, or when applicable, his or her dependent to select a new plan within 60 days of the date that he or she knew, or reasonably should have known, of the occurrence of the triggering event.(6)Special rule for individuals losing Medicaid or CHIP. Beginning January 1, 2024, or earlier, at the option of the Exchange, a qualified individual or their dependent(s) who is described in paragraph (d)(1)(i) of this section and whose loss of coverage is a loss of Medicaid or CHIP coverage shall have 90 days after the triggering event to select a QHP. If a State Medicaid or CHIP Agency allows or provides for a Medicaid or CHIP reconsideration period greater than 90 days, the Exchange in that State may elect to provide a qualified individual or their dependent(s) who is described in paragraph (d)(1)(i) of this section and whose loss of coverage is a loss of Medicaid or CHIP coverage additional time to select a QHP, up to the number of days provided for the applicable Medicaid or CHIP reconsideration period. (d)Triggering events. Subject to paragraphs (a)(3) through (5) of this section, as applicable, the Exchange must allow a qualified individual or enrollee, and, when specified below, his or her dependent, to enroll in or change from one QHP to another if one of the triggering events occur: (1) The qualified individual or his or her dependent either: (i) Loses minimum essential coverage. The date of the loss of coverage is the last day the consumer would have coverage under his or her previous plan or coverage;(ii) Is enrolled in any non-calendar year group health plan, individual health insurance coverage, or qualified small employer health reimbursement arrangement (as defined in section 9831(d)(2) of the Internal Revenue Code); even if the qualified individual or his or her dependent has the option to renew or re-enroll in such coverage. The date of the loss of coverage is the last day of the plan year; (iii) Loses pregnancy-related coverage described under section 1902(a)(10)(A)(i)(IV) and (a)(10)(A)(ii)(IX) of the Act ( 42 U.S.C. 1396a(a)(10)(A)(i)(IV), (a)(10)(A)(ii)(IX) ) or loses access to health care services through coverage provided to a pregnant woman's unborn child, based on the definition of a child in 42 CFR 457.10 . The date of the loss of coverage is the last day the qualified individual would have pregnancy-related coverage or access to health care services through the unborn child coverage; or (iv) Loses medically needy coverage as described under section 1902(a)(10)(C) of the Social Security Act only once per calendar year. The date of the loss of coverage is the last day the consumer would have medically needy coverage.(2)(i) The qualified individual gains a dependent or becomes a dependent through marriage, birth, adoption, placement for adoption, or placement in foster care, or through a child support order or other court order. (A) In the case of marriage, at least one spouse must demonstrate having minimum essential coverage as described in 26 CFR 1.5000A-1(b) for 1 or more days during the 60 days preceding the date of marriage.(ii) At the option of the Exchange, the enrollee loses a dependent or is no longer considered a dependent through divorce or legal separation as defined by State law in the State in which the divorce or legal separation occurs, or if the enrollee, or his or her dependent, dies.(3) The qualified individual, or his or her dependent, becomes newly eligible for enrollment in a QHP through the Exchange because he or she newly satisfies the requirements under §155.305(a)(1) or (2);(4) The qualified individual's or his or her dependent's, enrollment or non-enrollment in a QHP is unintentional, inadvertent, or erroneous and is the result of the error, misrepresentation, misconduct, or inaction of an officer, employee, or agent of the Exchange or HHS, its instrumentalities, or a non-Exchange entity providing enrollment assistance or conducting enrollment activities. For purposes of this provision, misconduct includes the failure to comply with applicable standards under this part, part 156 of this subchapter, or other applicable Federal or State laws as determined by the Exchange.(5) The enrollee or, his or her dependent adequately demonstrates to the Exchange that the QHP in which he or she is enrolled substantially violated a material provision of its contract in relation to the enrollee;(6)Newly eligible or ineligible for advance payments of the premium tax credit, or change in eligibility for cost-sharing reductions.(i) The enrollee is determined newly eligible or newly ineligible for advance payments of the premium tax credit or has a change in eligibility for cost-sharing reductions;(ii) The enrollee's dependent enrolled in the same QHP is determined newly eligible or newly ineligible for advance payments of the premium tax credit or has a change in eligibility for cost-sharing reductions; (iii) A qualified individual or his or her dependent who is enrolled in an eligible employer-sponsored plan is determined newly eligible for advance payments of the premium tax credit based in part on a finding that such individual is ineligible for qualifying coverage in an eligible-employer sponsored plan in accordance with 26 CFR 1.36B-2(c)(3) , including as a result of his or her employer discontinuing or changing available coverage within the next 60 days, provided that such individual is allowed to terminate existing coverage;(iv) A qualified individual who was previously ineligible for advance payments of the premium tax credit solely because of a household income below 100 percent of the FPL and who, during the same timeframe, was ineligible for Medicaid because he or she was living in a non-Medicaid expansion State, who either experiences a change in household income or moves to a different State resulting in the qualified individual becoming newly eligible for advance payments of the premium tax credit; or(v) At the option of the Exchange, the qualified individual, or his or her dependent- (A) Experiences a decrease in household income;(B) Is newly determined eligible by the Exchange for advance payments of the premium tax credit; and(C) Had minimum essential coverage as described in 26 CFR 1.5000A-1(b) for one or more days during the 60 days preceding the date of the financial change. (7) The qualified individual or enrollee, or his or her dependent, gains access to new QHPs as a result of a permanent move and- (i) Had minimum essential coverage as described in 26 CFR 1.5000A-1(b) for one or more days during the 60 days preceding the date of the permanent move.(8) The qualified individual- (i) Who gains or maintains status as an Indian, as defined by section 4 of the Indian Health Care Improvement Act, may enroll in a QHP or change from one QHP to another one time per month; or(ii) Who is or becomes a dependent of an Indian, as defined by section 4 of the Indian Health Care Improvement Act and is enrolled or is enrolling in a QHP through an Exchange on the same application as the Indian, may change from one QHP to another one time per month, at the same time as the Indian;(9) The qualified individual or enrollee, or his or her dependent, demonstrates to the Exchange, in accordance with guidelines issued by HHS, that the individual meets other exceptional circumstances as the Exchange may provide;(10) A qualified individual or enrollee- (i) Is a victim of domestic abuse or spousal abandonment as defined by 26 CFR 1.36B-2 or a dependent or unmarried victim within a household, is enrolled in minimum essential coverage, and sought to enroll in coverage separate from the perpetrator of the abuse or abandonment; or(ii) Is a dependent of a victim of domestic abuse or spousal abandonment, on the same application as the victim, may enroll in coverage at the same time as the victim;(11) A qualified individual or dependent- (i) Applies for coverage on the Exchange during the annual open enrollment period or due to a qualifying event, is assessed by the Exchange as potentially eligible for Medicaid or the Children's Health Insurance Program (CHIP), and is determined ineligible for Medicaid or CHIP by the State Medicaid or CHIP agency either after open enrollment has ended or more than 60 days after the qualifying event; or(ii) Applies for coverage at the State Medicaid or CHIP agency during the annual open enrollment period, and is determined ineligible for Medicaid or CHIP after open enrollment has ended;(12) The enrollment in a QHP through the Exchange was influenced by a material error related to plan benefits, service area, cost-sharing, or premium. A material error is one that is likely to have influenced a qualified individual's, enrollee's, or their dependent's enrollment in a QHP.(13) At the option of the Exchange, the qualified individual provides satisfactory documentary evidence to verify his or her eligibility for an insurance affordability program or enrollment in a QHP through the Exchange following termination of Exchange enrollment due to a failure to verify such status within the time period specified in §155.315 or is under 100 percent of the Federal poverty level and did not enroll in coverage while waiting for HHS to verify his or her citizenship, status as a national, or lawful presence; or(14) The qualified individual, enrollee, or dependent newly gains access to an individual coverage HRA (as defined in 45 CFR 146.123(b) ) or is newly provided a qualified small employer health reimbursement arrangement (QSEHRA) (as defined in section 9831(d)(2) of the Internal Revenue Code). The triggering event is the first day on which coverage for the qualified individual, enrollee, or dependent under the individual coverage HRA can take effect, or the first day on which coverage under the QSEHRA takes effect. An individual, enrollee, or dependent will qualify for this special enrollment period regardless of whether they were previously offered or enrolled in an individual coverage HRA or previously provided a QSEHRA, so long as the individual, enrollee, or dependent is not enrolled in the individual coverage HRA or covered by the QSEHRA on the day immediately prior to the triggering event.(15) The qualified individual or his or her dependent is enrolled in COBRA continuation coverage for which an employer is paying all or part of the premiums, or for which a government entity is providing subsidies, and the employer completely ceases its contributions to the qualified individual's or dependent's COBRA continuation coverage or government subsidies completely cease. The triggering event is the last day of the period for which COBRA continuation coverage is paid for or subsidized, in whole or in part, by an employer or government entity. For purposes of this paragraph, "COBRA continuation coverage" has the meaning provided for in § 144.103 of this subchapter and includes coverage under a similar State program.(16) At the option of the Exchange, a qualified individual or enrollee, or the dependent of a qualified individual or enrollee, who is eligible for advance payments of the premium tax credit, and whose household income, as defined in 26 CFR 1.36B-1(e) , is expected to be no greater than 150 percent of the Federal poverty level, may enroll in a QHP or change from one QHP to another one time per month during periods of time when the applicable taxpayer's applicable percentage for purposes of calculating the premium assistance amount, as defined in section 36B(b)(3)(A) of the Internal Revenue Code, is set at zero.(e)Loss of coverage. Loss of coverage described in paragraph (d)(1) of this section includes those circumstances described in 26 CFR 54.9801-6(a)(3)(i) through (iii) and in paragraphs (d)(1)(ii) through (iv) of this section. Loss of coverage does not include voluntary termination of coverage or other loss due to- (1) Failure to pay premiums on a timely basis, including COBRA continuation coverage premiums prior to expiration of COBRA continuation coverage, except for circumstances in which an employer completely ceases its contributions to COBRA continuation coverage, or government subsidies of COBRA continuation coverage completely cease as described in paragraph (d)(15) of this section, or (2) Situations allowing for a rescission as specified in 45 CFR 147.128 .(f) For purposes of this section, references to eligibility for advance payments of the premium tax credit refer to being eligible for such advance payments in an amount greater than zero dollars per month. References to ineligibility for advance payments of the premium tax credit refer to being ineligible for such payments or being eligible for such payments but being eligible for a maximum of zero dollars per month of such payments.(g)Pre-enrollment special enrollment period verification. At the option of the Exchange, an Exchange may verify prior to processing a qualified individual's plan selection that the qualified individual is eligible for a special enrollment period under this section. In circumstances where the Exchange determines that such pre-enrollment special enrollment period verification may cause undue burden on qualified individuals, the Exchange may provide an exception to the pre-enrollment special enrollment period verification process, provided it does so in a manner consistent with the non-discrimination requirements under § 155.120(c) . Exchanges on the Federal platform will conduct pre-enrollment special enrollment verification of eligibility only for special enrollment periods under paragraph (d)(1) of this section.77 FR 18444, Mar. 27, 2012, as amended at 78 FR 42321, July 15, 2013; 78 FR 65095, Oct. 30, 2013; 79 FR 30348, May 27, 2014; 80 FR 10866, Feb. 27, 2015; 80 FR 38653, July 7, 2015; 81 FR 29155, May 11, 2016; 81 FR 94178, Dec. 22, 2016; 82 FR 18381, Apr. 18, 2017; 83 FR 17062, Apr. 17, 2018; 84 FR 17567, Apr. 25, 2019; 84 FR 29027, June 20, 2019; 85 FR 29260, May 14, 2020; 86 FR 24289, May 5, 2021; 86 FR 53503, Sept. 27, 2021; 87 FR 27389, May 6, 2022 77 FR 18444, 3/27/2012, as amended at 78 FR 42321, 7/15/2013; 78 FR 65095, 10/30/2013; 79 FR 30348, 5/27/2014; 79 FR 59138, 10/1/2014; 80 FR 10866, 2/27/2015; 80 FR 38653, 7/7/2015; 81 FR 29155, 5/11/2016; 81 FR 94178, 12/22/2016; 82 FR 18381, 6/19/2017; 83 FR 17062, 6/18/2018; 84 FR 17567, 6/24/2019; 84 FR 29027, 8/19/2019; 85 FR 29260, 7/13/2020; 86 FR 24289, 7/6/2021; 86 FR 53412, 11/26/2021; 87 FR 27386, 7/1/2022; 88 FR 25919, 6/18/2023