(a) If a motor carrier receives a proposed safety rating that is less than Satisfactory and does not already have a safety permit, it will not be issued a safety permit (including a temporary safety permit) unless and until a Satisfactory safety rating is issued to the motor carrier.

(b) If a motor carrier receives a proposed safety rating that is less than Satisfactory and holds a safety permit (including a temporary safety permit), the safety permit will be subject to revocation or suspension (see §385.421).