Section 58.01.01.313 - TIMELY APPLICATION01.New Tier 1 Operating Permits. For sources that become Tier I sources located at a facility not previously authorized by a Tier I operating permit, the owner or operator of the Tier I source must submit to the Department a complete application for a Tier I operating permit within twelve (12) months after becoming a Tier I source or commencing operation, unless the Department provides written notification of an earlier date to the owner or operator. (3-28-23)02.Renewals of Tier I Operating Permits. The owner or operator of the Tier I source must submit a complete application to the Department for a renewal of the Tier I operating permit at least six (6) months before, but no earlier than eighteen (18) months before, the expiration date of the existing Tier I operating permit. To ensure that the term of the operating permit does not expire before the permit is renewed, the owner or operator is encouraged to submit the application nine (9) months prior to expiration. (3-28-23)03.Changes to Tier I Operating Permits. Sections 380 through 386 provide the requirements and procedures for changes at Tier I sources and to Tier I operating permits. (3-28-23)Idaho Admin. Code r. 58.01.01.313