After an inspection or investigation, if the commissioner believes that an employer has violated a requirement of section 182.653, or any standard, rule or order adopted pursuant to this chapter, the commissioner shall, with reasonable promptness and in no event later than six months following the inspection, issue a written citation to the employer by certified mail. The citation shall describe with particularity the nature of the violation, including a reference to the provision of the act, standard, rule or order alleged to have been violated. In addition, the citation shall fix a reasonable time for the abatement of the violation.
Each citation issued under this section, and the penalty proposed to be assessed under section 182.666, or a copy or copies thereof, shall be prominently posted, as prescribed in rules issued by the commissioner, at or near each place a violation referred to in the citation occurred. Each citation and proposed penalty shall be posted for a minimum period of 20 days.
The commissioner may prescribe procedures for the issuance of a notice in lieu of a citation with respect to de minimis violations which have no direct or immediate relationship to safety and health.