The requirements in this chapter supplement the provisions of Labor and Employment Article, § 5-401--5-410, Annotated Code of Maryland. The employer compiling a chemical information list shall ensure that: The complete name and business address of the employer submitting the list, the name and telephone number of a contact person, and the date of preparation or revision is noted on the first page of the list; Either the chemical or common name on the list is the identity shown on the MSDS and label; When a chemical is added to the list, the date of addition appears next to the addition. If symbols, letters, or numbers are used to identify work areas, the employer shall also provide a key, map, or other descriptive identification. The employer shall, upon request, assure the immediate access of the Commissioner of Labor and Industry to the chemical information list. Labor and Employment Article, §§2-106(b)(4) and 5-312, Annotated Code of Maryland Effective date: November 25, 1985 (12:17 Md. R. 1705) Regulation .01 amended effective November 27, 1989 (16:23 Md. R. 2505) Regulation .02A amended effective November 27, 1989 (16:23 Md. R. 2505) Regulation .03C, D amended effective November 27, 1989 (16:23 Md. R. 2505) Regulation .04 amended effective November 27, 1989 (16:23 Md. R. 2505) Regulations .01—.05 repealed, new Regulation .01 adopted, and Regulation .06 recodified to be Regulation .02 effective December 24, 1990 (17:25 Md. R. 2907)