The label shall be either of 3 basic types, each capable of 20 year life expectancy when exposed to ordinary outdoor environments. Letters and numbers shall be bold Gothic or similar style varied for emphasis as large as space permits with smallest size being 5/64". Wording shall be easily read and concise.
Minimum Size: .020" x 1 1/2 " x 3" net dimensions (inside fastener heads).
Material: Aluminum, brass or stainless steel etched, stamped, engraved, or embossed to .015 minimum depth differential--color anodized or enamel filled.
Minimum Size: .005" x 1 1/2" x 3".
Material: Aluminum foil etched or stamped to .001 minimum depth differential with color anodized background.
Where permanent type adhesives are used on Type I, II or III plates, adhesives shall have a minimum thickness of .004 inch, they shall be properly affixed to a smooth surface.
Cal. Code Regs. Tit. 25, § 4031
2. Amendment filed 7-25-75; designated effective 9-1-75 (Register 75, No. 30).
3. New subsection (e) filed 5-4-79; effective thirtieth day thereafter (Register 79, No. 18).
Note: Authority cited: Section 18020, Health and Safety Code. Reference: Sections 18055, 18055.5, 18056.4, 18056.5, Health and Safety Code.
2. Amendment filed 7-25-75; designated effective 9-1-75 (Register 75, No. 30).
3. New subsection (e) filed 5-4-79; effective thirtieth day thereafter (Register 79, No. 18).