40 CFR 761.45 : Protection Of Environment (§ 1.1 To Parts 1851-1899) — (Subpart A To Parts 767-789) — Environmental Protection Agency (Continued) (Subpart A To Parts 767-789) — Toxic Substances Control Act (Subpart A To Parts 767-789) — Polychlorinated Biphenyls (Pcbs) Manufacturing, Processing, Distribution In Commerce, And Use Prohibitions (§ 761.1 To § 761.398) — Marking Of Pcbs And Pcb Items (§ 761.40 And § 761.45) — Marking formats.

The following formats shall be used for marking:

(a) Large PCB Mark - M L.Mark ML shall be as shown in Figure 1, letters and striping on a white or yellow background and shall be sufficiently durable to equal or exceed the life (including storage for disposal) of the PCB Article, PCB Equipment, or PCB Container. The size of the mark shall be at least 15.25 cm (6 inches) on each side. If the PCB Article or PCB Equipment is too small to accommodate this size, the mark may be reduced in size proportionately down to a minimum of 5 cm (2 inches) on each side.

(b) Small PCB Mark - M s.Mark Ms shall be as shown in Figure 2, letters and striping on a white or yellow background, and shall be sufficiently durable to equal or exceed the life (including storage for disposal) of the PCB Article, PCB Equipment, or PCB Container. The mark shall be a rectangle 2.5 by 5 cm (1 inch by 2 inches). If the PCB Article or PCB Equipment is too small to accommodate this size, the mark may be reduced in size proportionately down to a minimum of 1 by 2 cm (.4 by .8 inches).