when were guns required to have serial numbers
Gun Control Act of 1968 The law also required that all newly manufactured firearms produced by licensed manufacturers in the United States and imported into the United States bear a serial number. Firearms manufactured prior to the Gun Control Act and firearms manufactured by non-FFLs remain exempt from the serial number requirement. Defacement or removal of the serial number (if present) is a felony offense.
Tobacco packaging warning messages In 1966, the United States became the first nation in the world to require a health warning on cigarette packages.[45][46]
ICD-10 Work on ICD-10 began in 1983 and was completed in 1992.[1]
Tobacco packaging warning messages In 1966, the United States became the first nation in the world to require a health warning on cigarette packages.[50][51]