16 CFR Part 1512, Table 3
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
| Observation angle (degrees) | Entrance angle (degrees) | Minimum acceptable value of A |
|---|---|---|
| Meters | Feet | |
| 0.2 | −4 | 2.2 | 7.25 |
| .2 | 20 | 1.9 | 6.27 |
| .2 | 40 | 1.3 | 4.29 |
| 1.5 | −4 | 0.22 | 0.73 |
| 1.5 | 20 | 0.19 | 0.63 |
| 1.5 | 40 | 0.13 | 0.43 |
[43 FR 60034, Dec. 22, 1978, as amended at 45 FR 82631, Dec. 16, 1980; 46 FR 3204, Jan. 14, 1981]