Section 385.419T - How long is a safety permit effective?Unless suspended or revoked, a safety permit (other than a temporary safety permit) is effective for two years, except that:
(a) A safety permit will be subject to revocation if a motor carrier fails to submit a renewal application (Form MCS-150B) in accordance with the schedule set forth for filing Form MCS-150 in § 390.19T(a) of this chapter; and(b) An existing safety permit will remain in effect pending FMCSA's processing of an application for renewal if a motor carrier submits the required application (Form MS-150B) in accordance with the schedule set forth in § 390.19T(a)(2) and (3) of this chapter. 82 FR 5305 , Jan. 17, 2017