MPCA will ensure that compliance and enforcement information is complete, accurate and timely, consistent with EPA policies and the ICR. Enclosed is the Addendum to the NPDES Memorandum ofAgreement between the U.S.. Environmental Protection Agency (EPA) and the Minnesota Pollution Control Agency.International environmental agreements (IEAs) are signed treaties that regulate or manage human impact on the environment in an effort to protect it. The current PPA covers the timeframe between October 1, 2016, and September 30, 2020, (or federal fiscal years 20172020). International agreements to take steps to limit global warming to 1.5 degrees Celsius.