Regulations last checked for updates: May 10, 2026

Title 40 - Protection of Environment last revised: Aug 10, 2026
Appendix Appendix E - Appendix E to Part 1037—Power Take-Off Utility Factors
Time
(min)
Utility
factor
fraction
00
100.1
200.18
300.24
400.31
500.36
600.4
700.44
800.47
900.51
1000.54
1100.57
1200.6
1300.64
1400.66
1500.69
1600.71
1700.74
1800.76
1900.77
2000.79
2100.8
2200.82
2300.83
2400.85
2500.86
2600.87
2700.88
2800.88
2900.89
3000.9
3100.9
3200.91
3300.92
3400.93
3500.93
3600.94
3700.95
3800.95
3900.96
4200.96
4300.97
4600.97
4700.98
5200.98
5300.99
5800.99
5901
[81 FR 74048, Oct. 25, 2016. Redesignated at 88 FR 4658, Jan. 24, 2023]
authority: 42 U.S.C. 7401—7671q
source: 81 FR 74048, Oct. 25, 2016, unless otherwise noted.