N.Y. Comp. Codes R. & Regs. tit. 17, § 730.3
(b) Except as provided by subdivision (c) of this section, the effective date. The effective date must be at least 30 days after the date the tariff is received by the department, unless the carrier has been granted an exemption.
(2) Round-trip excursion fares.
(c) Tariffs for new services or for round trip excursion fares.
(g) Each tariff shall provide for and incorporate into any tariff schedules filed by the carrier a provision for the redemption of unused tickets substantially in the following form: Wholly or partly unused tickets will be redeemed at (specify location of office). The redemption value of such tickets will be determined as follows:
Tariffs shall contain: