---
kind: "section"
citation: "30 C.F.R. § 35.9"
title: "30"
number: "35.9"
heading: "Certificates of approval."
url: "https://uscodex.org/cfr/30/35.9"
---

# §35.9. Certificates of approval.

- (a) Upon completion of an investigation of a hydraulic fluid MSHA will issue to the applicant either a certificate of approval or a written notice of disapproval as the case may require. No informal notification of approval will be issued. If a certificate of approval is issued, no test data or detailed results of tests will accompany it. If a notice of disapproval is issued, it will be accompanied by details of the defect(s), with a view to possible correction. MSHA will not disclose, except to the applicant, any information on a fluid upon which a notice of disapproval has been issued.
- (b) A certificate of approval will be accompanied by a list of specifications covering the characteristics of a hydraulic fluid upon which the certificate of approval is based. In addition to the applicant's record of control in maintaining the fire-resistant characteristics, applicants shall keep exact duplicates of the specifications that have been submitted to MSHA and that relate to any fluid which has received a certificate of approval; and these are to be adhered to exactly in production of the certified fluid for commercial purposes.

## Notes

### Authority

Authority: 30 U.S.C. 957, 961.

### Source

Source: Schedule 30, 24 FR 10201, Dec. 17, 1959, unless otherwise noted.