Done at San Diego on this18 day of July, 1985 in duplicate, in the English and Spanish languages, both texts being equally authentic. The mission of the IBWC is to apply the rights and obligations which the Governments of the.The documents are on the USIBWC Home. This letter puts the IBWC on notice of its violations of the NPDES permit for the. Of CARB, APCD, and environmental justice communities in the San Diego region to improve air quality. The United States Environmental Protection Agency's (EPA) Climate Pollution Reduction. Complete funding will be assured when all the credits are used or sold. What is an international environmental agreement? What goes into signing them, and what is the history of nations adopting these agreements? The Department of Environmental Health and Quality (DEHQ) enhances San Diegans' quality of life.