Mitigation has not been a major focus of research on urban CH4 emissions to date, although several key studies in the review indicate a strong connection between emissions measurement and mitigation through identification of CH4 mitigation opportunities and verification of mitigation effectiveness. Regulations may provide impetus for expanding the scope of measurement and mitigation research through increased requirements around measurement-based monitoring, mitigation actions, reporting, and verification. Key research priorities include emissions from organic waste diversion, fugitive emissions from landfill cover systems and gas capture, and targeted studies of programs and technologies for reducing CH4 emissions from the natural gas distribution system and end-use slip.