Montreal Protocol undeveloped to developed nations, the overall level of compliance has been high. Statistical analysis from 2010 show a clear positive signal from the Montreal Protocol to the stratospheric ozone. In consequence, the Montreal Protocol has often been called the most successful international environmental agreement to date. In a 2001 report, NASA found the ozone thinning over Antarctica had remained the same thickness for the previous three years, however in 2003 the ozone hole grew to its second largest size. The most recent (2006) scientific evaluation of the effects of the Montreal Protocol states, "The Montreal Protocol is working: There is
Toxic Substances Control Act of 1976 later explained during a 1975 Congressional Testimony, "While some authority exists to control the production of certain categories of toxic substances, such as pesticides, drugs, and food additives, most existing Federal authorities are designed to prevent harmful exposure only after the substances have been introduced into production." In Order to adequately regulate what chemicals should enter the environment, CEQ recommended that the government create a more comprehensive chemical policy to identify and control the chemicals that are manufactured, produced, and used in the U.S economy. Specifically, CEQ recommended that TSCA strengthen government oversight by requiring the following measures: First, manufacturers