On December 4, 2013, Region 10 signed an Administrative Settlement Agreement (ASA) with Rabaul Diesel, Inc. (RDI) resolving violations of Title II of the CAA. RDI agreed to remediate six marine diesel engines that hold a certificate of conformity only for recreational use but that were installed in commercial fishing vessels. RDI will either modify the existing engines to be functionally identical to a commercially certified model or replace the engines with ones that hold a certificate of conformity for commercial use. In addition, RDI agreed to pay a civil penalty of $39,000.