Alliance Emissions Monitoring (AEM) is a division of Alliance Technical Group, LLC. AEM provides the highest level of regulat ... ory compliance and quality assurance through Leak Detection and Repair Solutions. The AEM Quality and Training Department establishes, tracks and achieves performance and quality milestones. The department interprets and adapts with changing LDAR regulations, along with evolving LDAR inventory technologies being developed to enhance the quality and productivity of field data collection activities. read more