(a) If upon inspection or investigation, the Commissioner or the Commissioner's authorized representative believes that a public-sector employer has violated a requirement of section 35 of this chapter, of any standard, rule or order promulgated pursuant to section 36 of this chapter, or of any regulations prescribed under this chapter, he shall with reasonable promptness issue a citation to the employer. Each citation must be in writing and must describe with particularity the nature of the violation including a reference to the provision of this chapter, standard, rule, regulation or order alleged to have been violated. In addition, the citation must fix a reasonable time for abatement of the violation. The Commissioner may prescribe procedures for issuance of a notice in lieu of a citation with respect to de minimis violations that have no direct or immediate relationship to safety and health.
(b) Each citation issued under this section or a copy of the citation must be prominently posted, as prescribed in regulations issued by the Commissioner, at or near each place a violation referred to in the citation occurred.
(c) No citation may be issued under this section after the expiration of six months following the discovery of a violation during an inspection.