Which of the following is true regarding citations issued by an OSHA area director?

Citations issued by an OSHA area director encompass all the mentioned attributes, making the comprehensive answer the most accurate. Citations are indeed written documents that specify the nature of the violation, the required corrective actions, and the timeframe for compliance. This formal written format ensures clarity and serves as an official record of the violation and the responsibilities of the employer.

Additionally, these citations are issued via U.S. certified mail, ensuring both the document's delivery and the ability to track it. This method provides a layer of accountability, confirming that the employer has received notification of the violation.

Furthermore, there is a requirement for these citations to be prominently posted at or near the area of the violation. This posting not only serves to inform affected employees of their rights but also enhances workplace safety by making clear the issues identified by OSHA. Posting the citation fosters transparency and accountability within the organization.

Thus, the combination of being written, mailed via certified mail, and required to be posted encapsulates the procedural and operational standards that OSHA mandates for issuing citations.