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.
In order to compel people to do so, in 1970, Congress created the Environmental Protection Agency to help protect our shared planet.They also created a number of different environmental protection policies and regulations. In 1970, Congress passed the Clean Air Act Extension, which was followed by the Clean Air Act Amendments in â77 and â90. 2  These updated clean air acts gave greater control to the Environmental Protection Agency, and addressed acid rain, ozone depletion, toxic air pollution and emissions trading.