The Department of Labor Relations1 (DLR) was established in November 2007 pursuant to Chapter 145 of the Acts of 2007. All public employees (except police officers) in Massachusetts are granted the right to join unions and to "present proposals" to public employers.The Act also permits polygraph testing, subject to restrictions, of certain employees of private firms who are reasonably suspected of involvement in a. It is often said that in the United States, employers may fire their workers for any reason, or no reason at all. The National Labor Relations Board has 26 regional offices and is headquartered in Washington, DC. Hover over the map above to find a regional office. We represent the Mayor, the City, and City Departments in all labor matters. This includes matters before state courts and agencies, and other forums. Employment Law Advisor. Employment Applications in Massachusetts. Labour laws labour code or employment laws are those that mediate the relationship between workers, employing entities, trade unions, and the government.