Since passage of the Vocational Education Act of 1963, further expansion of agricultural education has occurred in vocational schools and in courses offered at junior and senior colleges.
Since passage of the "motor voter" registration law a decade ago, independents have registered in greater numbers than members of either major party in many jurisdictions.
Since passage of the Sarbanes-Oxley Act of 2002 through the end of last year, the S.E.C. has recorded $3.7 billion worth of settlements with corporations, according to the National Economic Research Associates.
Since passage of the federal stimulus package, which includes provisions requiring prompt public reporting of breaches, the government has received notice of 306 cases from September 2009 to June 2011 that affected at least 500 people apiece.
Since passage of the health care law, the administration has often said that people seeking insurance would use a single streamlined application for Medicaid and the subsidies for private coverage.
Since passage of the 1990 law, however, government reviews have shown haphazard compliance, with little uniformity in how colleges defined crimes and how they determined which to include in their reports.
Since passage of the 1970 Clean Air Act, the country's air is significantly cleaner, but scientific research continues to ratchet down the amount of pollution that is considered healthy to breathe.
"Since passage of the Patriot Act, many companies based outside of the United States have been reluctant to store client information in the U.S.," said Marc Rotenberg, executive director of the Electronic Privacy Information Center in Washington.
