Mechanical integrity procedures must be written in adequate detail to assure that the equipment receives prudent, appropriate, and periodically scheduled maintenance. It was noted above that OSHA issued a large number of citations for failure to have the written procedures.

The mechanical integrity procedures must also embody the safe work practices as well as the detailed equipment procedures. Safe work practices include "Lock and Tag," "Confined Space Entry," "Welding, Burning and Open Flame," and similar essential personnel safety procedures. Detailed equipment procedures include generic procedures, equipment specific procedures, and manufacturers' procedures.

Employees involved in maintaining the ongoing integrity of process equipment must be trained in an overview of the chemical process and its hazards. Employees must be also trained in the procedures applicable to the employees' job tasks, such as the safe work practices discussed above.