Pipes or piping systems in a workplace that contain a hazardous chemical shall be identified to an employee by a label or by a sign, placard, written operating instructions, process sheet, batch ticket, or a substance identification system that conveys the same information required to be displayed on a label by the standard incorporated by reference in section 14a. The employer shall provide at least 1 label, sign, placard, set of written operating instructions, process sheet, batch ticket, or a substance identification system selected by the employer and readily accessible to each employee at a location in the workplace designated by the employer. The employer shall establish a pipe and stationary process container entry procedure that will assure that the information required by 29 C.F.R. § 1910.1200(f) is conveyed to an employee before entry. The requirements of this subsection shall apply in addition to the occupational safety and health hazard communication standard incorporated by reference in section 14a.