N.Y. Comp. Codes R. & Regs. tit. 22 § 1000.11
Relief pursuant to section 1250.11(a)(1) of this Title is contingent upon receipt of a properly filed and served notice of appeal and a copy of the order granting a defendant's application pursuant to C PL 380.55.
When counsel who has been assigned to perfect an appeal on behalf of an indigent defendant determines, after conferring with the defendant and trial counsel, that the appeal is frivolous, counsel may move to be relieved of the assignment pursuant to section 1250.11(f)(2) of this Title (see People v Crawford, 71 AD2d 38). The motion must be accompanied by a brief in which counsel states all points that may arguably provide a basis for appeal, with references to the record and citation of legal authorities. A copy of the brief, together with the motion, must be served upon the defendant at least 45 days before the return date of the motion. Together with the original motion papers and brief, counsel shall submit the papers that would constitute the record on appeal. Counsel shall also submit a copy of a letter to the defendant advising that he or she may elect to file a pro se response to the motion and/or a pro se supplemental brief. A defendant wishing to file a pro se response to such a motion and/or a pro se supplemental brief shall file the original response and/or brief, together with proof of service of one copy on assigned counsel and one copy on the people, by 4:00 p.m. on the business day preceding the day on which the motion is returnable, unless, for good cause shown, they are permitted to be filed at a later time. Any request for an extension to file such a response and/or pro se supplemental brief must be made by motion and supported by an affidavit demonstrating with particularity a reasonable excuse for the delay and an intent to file and serve the response and/or brief within a reasonable time (see section 1250.4[a][5] of this Title).
When assigned counsel does not move to be relieved as counsel and defendant has filed a pro se supplemental brief pursuant to section 1250.11(g)(2) of this Title, the people may file and serve an original and five copies of a responding brief, with proof of service of one copy on the defendant and assigned counsel, no later than 45 days after defendant has served the pro se supplemental brief.
N.Y. Comp. Codes R. & Regs. Tit. 22 § 1000.11