46 CFR §401.335

1. (a)The Director may issue an order to suspend or revoke a Certificate of Authorization if—
   1. (1)The holder of a Certificate of Authorization does not continue to meet the requirements under § 401.320; or
   2. (2)The holder of a Certificate of Authorization does not comply with the requirements of this part.
2. (b)Before issuing an order to suspend or revoke, the Director notifies the holder of a Certificate of Authorization of the reasons for the proposed suspension or revocation and gives the holder an opportunity to be heard or to comply with the requirements of this part.
3. (c)If the Director finds that the violation of a requirement of this part involves public health, interest, or safety, or that the violation is willful, the Director may issue an order to suspend the Certificate of Authorization without giving notice under paragraph (b) of this section. The order must contain the reasons for the Director's action.
4. (d)A holder who has its Certificate of Authorization suspended under paragraph (c) of this section will have an opportunity to be heard by notifying the Director in writing.
5. (e)The Director must reinstate a Certificate of Authorization that has been suspended under paragraph (b) or (c) of this section when the Director determines that the holder is complying with this part.