Code of Federal Regulations > Title 16 > Chapter II > Part 1512 > Appendix - Table 3 to Part 1512—Minimum Acceptable Values for the Quantity A Defined in the Retroreflective Tire and Rim Test Procedure

Regulations last checked for updates: Nov 22, 2024

Title 16 - Commercial Practices last revised: Nov 20, 2024

Appendix - Table 3 to Part 1512—Minimum Acceptable Values for the Quantity A Defined in the Retroreflective Tire and Rim Test Procedure

Observation angle (degrees)	Entrance angle (degrees)	Minimum acceptable value of A
Observation angle (degrees)	Entrance angle (degrees)	Meters	Feet
0.2	−4	2.2	7.25
.2	20	1.9	6.27
.2	40	1.3	4.29
1.5	−4	.22	.73
1.5	20	.19	.63
1.5	40	.13	.43

[43 FR 60034, Dec. 22, 1978, as amended at 45 FR 82631, Dec. 16, 1980; 46 FR 3204, Jan. 14, 1981]

authority: Secs. 2(f)(1)(D), (q)(1)(A), (s), 3(e)(1), 74 Stat. 372, 374, 375, as amended, 80 Stat. 1304-05, 83 Stat. 187-89 (15 U.S.C. 1261,1262; Pub. L. 107-319, 116 Stat. 2776

source: 43 FR 60034, Dec. 22, 1978, unless otherwise noted.