1. Regulations
  2. title 49
  3. chapter II
  4. part 210
  5. appendix AppendixA

Appendix A - Appendix A to Part 210—Summary of Noise Standards, 40 CFR Part 201

Paragraph and section Noise source Noise standard—A weighted sound level in dB Noise measure 1Measurement location All Locomotives Manufactured on or Before 31 December 1979201.11(a)Stationary, Idle Throttle Setting73Lmax (slow)30 m (100 ft) 201.11(a)Stationary, All Other Throttle Settings93......do Do. 201.12(a)Moving96Lmax (fast) Do. All Locomotives Manufactured After 31 December 1979201.11(b)Stationary, Idle Throttle Setting70Lmax (slow) Do. 201.11(b)Stationary, All Other Throttle Settings87......do Do. 201.12(b)Moving90Lmax (fast) Do. 201.11(c) and 201.12(c)Additional Requirement for Switcher Locomotives Manufactured on or Before 31 December 1979 Operating in Yards Where Stationary Switcher and other Locomotive Noise Exceeds the Receiving Property Limit of65L90 (fast) 2Receiving property 201.11(c)Stationary, Idle Throttle Setting70Lmax (slow)30 m (100 ft) 201.11(c)Stationary, All Other Throttle Settings87......do Do. 201.12(c)Moving90Lmax (fast) Do. Rail Cars201.13(1)Moving at Speeds of 45 mph or Less88......do Do. 201.13(2)Moving at Speeds Greater than 45 mph93......do Do. Other Yard Equipment and Facilities201.14Retarders83Ladjavemax (fast)Receiving property 201.15Car-Coupling Operations92......do Do. 201.16Locomotive Load Cell Test Stands, Where the Noise from Locomotive Load Cell Operations Exceeds the Receiving Property Limits of65L90 (fast) 2 Do. 201.16(a)Primary Standard78Lmax (slow)30 m (100 ft). 201.16(b)Secondary Standard if 30-m Measurement Not Feasible65L90 (fast)Receiving property located more than 120 m from Load Cell.

1 Lmax = Maximum sound level; L90 = Statistical sound level exceeded 90% of the time; Ladjavemax = Adjusted average maximum sound level.

2 L90 must be validated by determining that L10-L99 is less than or equal to 4dB (A).

[48 FR 56758, Dec. 23, 1983; 49 FR 1521, Jan. 12, 1984]

AUTHORITY: Sec. 17, Pub. L. 92-574, 86 Stat. 1234 (42 U.S.C. 4916); 49 CFR 1.89.

SOURCE: 48 FR 56758, Dec. 23, 1983, unless otherwise noted.