Section 37.101 - Approval of plans(a) If, after review of any plan submitted pursuant to this subpart, NIOSH determines that the action to be taken under the plan by the operator meets the specifications of this subpart and will effectively achieve its purpose, NIOSH will approve the plan and notify the operator submitting the plan of the approval. Approval may be conditioned upon such terms as the Secretary deems necessary to carry out the purpose of section 203 of the Act.(b) Where NIOSH has reason to believe that it will deny approval of a plan NIOSH will, prior to the denial, give notice in writing to the operator(s) of an opportunity to amend the plan. The notice must specify the ground(s) upon which approval is proposed to be denied.(c) If a plan is denied approval, NIOSH will advise the operator(s) in writing of the reasons for the denial and inform MSHA that the plan was denied. 81 FR 73290 , Oct. 24, 2016