Pub. L. 88-133, tit. II, sec. 202

Sec. 202. Sections 3202 and 3221(a) of the Railroad Retirement Tax Act are each amended by inserting after “$400” wherever it appears the following: “for any calendar month before the calendar month next following the month in which this provision was amended in 1963, or $450 for any calendar month after the month in which this provision was so amended”.