37 Tex. Admin. Code § 21.4
The American Society of Agricultural Engineers Standard S276 and all amendments thereto, except visibility requirements and mounting requirements, is adopted by the department as the standard for slow-moving vehicle emblems used in Texas.
Source Note:The provisions of this §21.4 adopted to be effective January 1, 1976; amended to be effective December 21, 1983, 8 TexReg 5129.