Provisions similar to those in this section were contained in act Sept. 21, 1922, ch. 356, title IV, § 455, 42 Stat. 955. That section was superseded by section 456 of act June 17, 1930, comprising this section, and repealed by section 651(a)(1) of the 1930 act.

Provisions on the subject matter of this section were contained in R.S. § 2878, and particular provisions for certain ports in sections 2588 and 2833. Section 2878 contained a further provision prohibiting inspectors from performing any other duties or service than what was required by that title. All these sections were repealed by act Sept. 21, 1922, ch. 356, title IV, § 642, 42 Stat. 989.