29 CFR § 1960.18 - Supplementary standards.

(a) In addition to complying with emergency temporary standards issued under section 6 of the Act, an agency head shall adopt such emergency temporary and permanent supplementary standards as necessary and appropriate for application to working conditions of agency employees for which there exists no appropriate OSHA standards. In order to avoid any possible duplication of effort, the agency head should notify the Secretary of the subject matter of such standard when the development of the standard begins.

(b) The agency head shall send a copy of the final draft of the permanent supplementary standard to the Secretary prior to official adoption by the agency, along with any written comments on the standard from interested employees, employee representatives, and occupational safety and health committees. If the Secretary finds the permanent supplementary standard to be adopted inconsistent with OSHA standards, or inconsistent with OSHA enforcement practices under section 5(a)(1) of the Act, the Secretary shall have 15 working days in which to notify the head of the agency of this finding. In such a case, the supplementary standard shall not be adopted, but the agency will be afforded an opportunity to resubmit a revised standard that is designed to provide adequate protection and is consistent with OSHA standards. Upon request of the agency head, the Secretary shall offer to the agency technical assistance in the development of the supplemental standard.