2020—Pub. L. 116–216 substituted “2025” for “2020”.
2015—Pub. L. 114–54 substituted “2020” for “2015”.
2005—Pub. L. 109–83 substituted “2015” for “2005”.
2000—Pub. L. 106–472 substituted “2005” for “2000” and “30 percent” for “40 per centum”.
1994—Pub. L. 103–354 substituted “Secretary” for “Service”.
1993—Pub. L. 103–156 substituted “services performed” for “inspection and weighing” and “2000” for “1993”.
Amendment by Pub. L. 106–472 effective as if enacted
Amendment by Pub. L. 103–156 effective as of
That part of section 2 of Pub. L. 100–518 which provided that section was effective for the period