This bill adds a new environmental requirement to the African Growth and Opportunity Act, which provides special trade benefits to eligible sub-Saharan African countries. Under the bill, countries would be excluded from receiving these trade preferences unless they effectively enforce their own environmental laws and meet their international environmental obligations, including public health commitments. The change affects all sub-Saharan African nations currently eligible for the program's benefits, which include reduced or eliminated tariffs on their exports to the United States. The bill also makes a related change to the Trade Act of 1974 to clarify that eligibility requirements are evaluated based on current conditions rather than conditions from when the law was originally enacted. There is no specific funding amount or implementation timeline mentioned in the legislation.