StacksVerified U.S. regulatory reference

40 CFR Part 1037, Appendix A

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov
Time(sec)Speed(mi/hr)
10
20
30
40
50
60
70.41
81.18
92.26
103.19
113.97
124.66
135.32
145.94
156.48
166.91
177.28
187.64
198.02
208.36
218.6
228.74
238.82
248.82
258.76
268.66
278.58
288.52
298.46
308.38
318.31
328.21
338.11
348
357.94
367.94
377.8
387.43
396.79
405.81
414.65
423.03
431.88
441.15
451.14
461.12
471.11
481.19
491.57
502.31
513.37
524.51
535.56
546.41
557.09
567.59
577.99
588.32
598.64
608.91
619.13
629.29
639.4
649.39
659.2
668.84
678.35
687.81
697.22
706.65
716.13
725.75
735.61
745.65
755.8
765.95
776.09
786.21
796.31
806.34
816.47
826.65
836.88
847.04
857.05
867.01
876.9
886.88
896.89
906.96
917.04
927.17
937.29
947.39
957.48
967.57
977.61
987.59
997.53
1007.46
1017.4
1027.39
1037.38
1047.37
1057.37
1067.39
1077.42
1087.43
1097.4
1107.39
1117.42
1127.5
1137.57
1147.6
1157.6
1167.61
1177.64
1187.68
1197.74
1207.82
1217.9
1227.96
1237.99
1248.02
1258.01
1267.87
1277.59
1287.2
1296.52
1305.53
1314.36
1323.3
1332.5
1341.94
1351.56
1360.95
1370.42
1380
1390
1400
1410
1420
1430
1440
1450
1460
1470
1480
1490
1500
1510
1520
1530
1540
1550
1560
1570
1580
1590
1600
1610
1620
1630
1640
1650
1660
1670
1680
1690
1700
1710
1721.11
1732.65
1744.45
1755.68
1766.75
1777.59
1787.75
1797.63
1807.67
1818.7
18210.2
18311.92
18412.84
18513.27
18613.38
18713.61
18814.15
18914.84
19016.49
19118.33
19220.36
19321.47
19422.35
19522.96
19623.46
19723.92
19824.42
19924.99
20025.91
20126.26
20226.38
20326.26
20426.49
20526.76
20627.07
20726.64
20825.99
20924.77
21024.04
21123.39
21222.73
21322.16
21421.66
21521.39
21621.43
21720.67
21817.98
21913.15
2207.71
2213.3
2220.88
2230
2240
2250
2260
2270
2280
2290
2300
2310
2320
2330
2340
2350
2360
2370
2380
2390
2400
2410
2420
2430
2440
2450
2460
2470
2480
2490
2500
2510
2520
2530
2540
2550
2560
2570
2580
2590.5
2601.57
2613.07
2624.57
2635.65
2646.95
2658.05
2669.13
26710.05
26811.62
26912.92
27013.84
27114.38
27215.64
27317.14
27418.21
27518.9
27619.44
27720.09
27821.89
27924.15
28026.26
28126.95
28227.03
28327.3
28428.1
28529.44
28630.78
28732.09
28833.24
28934.46
29035.42
29135.88
29236.03
29335.84
29435.65
29535.31
29635.19
29735.12
29835.12
29935.04
30035.08
30135.04
30235.34
30335.5
30435.77
30535.81
30635.92
30736.23
30836.42
30936.65
31036.26
31136.07
31235.84
31335.96
31436
31535.57
31635
31734.08
31833.39
31932.2
32030.32
32128.48
32226.95
32326.18
32425.38
32524.77
32623.46
32722.39
32820.97
32920.09
33018.9
33118.17
33216.48
33315.07
33412.23
33510.08
3367.71
3377.32
3388.63
33910.77
34012.65
34113.88
34215.03
34315.64
34416.99
34517.98
34619.13
34718.67
34818.25
34918.17
35018.4
35119.63
35220.32
35321.43
35421.47
35521.97
35622.27
35722.69
35823.15
35923.69
36023.96
36124.27
36224.34
36324.5
36424.42
36524.38
36624.31
36724.23
36824.69
36925.11
37025.53
37125.38
37224.58
37323.77
37423.54
37523.5
37624.15
37724.3
37824.15
37923.19
38022.5
38121.93
38221.85
38321.55
38421.89
38521.97
38621.97
38722.01
38821.85
38921.62
39021.62
39122.01
39222.81
39323.54
39424.38
39524.8
39624.61
39723.12
39821.62
39919.9
40018.86
40117.79
40217.25
40316.91
40416.75
40516.75
40616.87
40716.37
40816.37
40916.49
41017.21
41117.41
41217.37
41316.87
41416.72
41516.22
41615.76
41714.72
41813.69
41912
42010.43
4218.71
4227.44
4235.71
4244.22
4252.3
4261
4270
4280.61
4291.19
4301.61
4311.53
4322.34
4334.29
4347.25
43510.2
43612.46
43714.53
43816.22
43917.87
44019.74
44121.01
44222.23
44322.62
44423.61
44524.88
44626.15
44726.99
44827.56
44928.18
45028.94
45129.83
45230.78
45331.82
45432.78
45533.24
45633.47
45733.31
45833.08
45932.78
46032.39
46132.13
46231.82
46331.55
46431.25
46530.94
46630.71
46730.56
46830.79
46931.13
47031.55
47131.51
47231.47
47331.44
47431.51
47531.59
47631.67
47732.01
47832.63
47933.39
48034.31
48134.81
48234.2
48332.39
48430.29
48528.56
48626.45
48724.79
48823.12
48920.73
49018.33
49115.72
49213.11
49310.47
4947.82
4955.7
4963.57
4970.92
4980
4990
5000
5010
5020
5030
5040
5050
5060
5070
5080
5090
5100
5110
5120
5130
5140
5150
5160
5170
5180
5190
5200
5210
5220.5
5231.5
5243
5254.5
5265.8
5276.52
5286.75
5296.44
5306.17
5316.33
5326.71
5337.4
5347.67
5357.33
5366.71
5376.41
5386.6
5396.56
5405.94
5415.45
5425.87
5436.71
5447.56
5457.59
5467.63
5477.67
5487.67
5497.48
5507.29
5517.29
5527.4
5537.48
5547.52
5557.52
5567.48
5577.44
5587.28
5597.21
5607.09
5617.06
5627.29
5637.75
5648.55
5659.09
56610.04
56711.12
56812.46
56913
57014.26
57115.37
57217.02
57318.17
57419.21
57520.17
57620.66
57721.12
57821.43
57922.66
58023.92
58125.42
58225.53
58326.68
58428.14
58530.06
58630.94
58731.63
58832.36
58933.24
59033.66
59134.12
59235.92
59337.72
59439.26
59539.45
59639.83
59740.18
59840.48
59940.75
60041.02
60141.36
60241.79
60342.4
60442.82
60543.05
60643.09
60743.24
60843.59
60944.01
61044.35
61144.55
61244.82
61345.05
61445.31
61545.58
61646
61746.31
61846.54
61946.61
62046.92
62147.19
62247.46
62347.54
62447.54
62547.54
62647.5
62747.5
62847.5
62947.31
63047.04
63146.77
63245.54
63343.24
63441.52
63539.79
63638.07
63736.34
63834.04
63932.45
64030.86
64128.83
64226.45
64324.27
64422.04
64519.82
64617.04
64714.26
64811.52
6498.78
6507.17
6515.56
6523.72
6533.38
6543.11
6552.58
6561.66
6570.67
6580
6590
6600
6610
6620
6630
6640
6650
6660
6670
6680

[81 FR 74048, Oct. 25, 2016. Redesignated at 88 FR 4658, Jan. 24, 2023]