1 Pitchers must throw a pitch within 20 seconds of receiving the ball. 2  Clocks posted in each dugout will count down the 20 seconds. 3  There will be a maximum break between innings of 2:05, with a clock keeping track. 4  Hitters must be in the batter's box by 1:45. 5  If the hitter's not ready, the umpire can call a strike. If the pitcher doesn't throw a pitch by 2:05, the umpire can call a ball. 2  Teams will have a maximum of 2:30 to change pitchers, with the clock starting as soon as the reliever enters the playing field. 3  Teams are limited to a maximum of three mound visits per game, not including pitching changes.
The Clean Air Act, originally passed in 1973 and amended in 1990, is a United States federal law designed to protect human health and the environment from the effects of air pollution.
Subchapter C, Parts 50-97. The 1955 Air Pollution Control Act was the first U.S federal legislation that pertained to air pollution; it also provided funds for federal government research of air pollution. The first federal legislation to actually pertain to  controlling  air pollution was the Clean Air Act of 1963.The 1963 act accomplished this by establishing a federal program within the U.S. Public Health Service and authorized research into techniques for monitoring and controlling air pollution.ubchapter C, Parts 50-97. The 1955 Air Pollution Control Act was the first U.S federal legislation that pertained to air pollution; it also provided funds for federal government research of air pollution. The first federal legislation to actually pertain to  controlling  air pollution was the Clean Air Act of 1963.