When I arrived at the Mine Safety and Health Administration in October 2009, one of my top priorities was to educate miners about their rights and responsibilities in the workplace, specifically those rights that pertain to their safety and health. According to Section 105(c) of the Federal Mine Safety and Health Act of 1977, a miner cannot be discharged, discriminated against or interfered with in the exercise of statutory rights because he or she has filed a complaint alleging a health or safety violation. Some mine operators, however, have disregarded this law, suspending, laying off or taking adverse action against a miner who became too vocal about mining conditions. In fact, issues relating to fears of discrimination and retaliation came to light during congressional hearings held in the wake of the Upper Big Branch Mine disaster. Statements from miners and family members of the miners who died indicated that mine employees had been reluctant to speak out about safety conditions in existence prior to the April 2010 explosion, fearing retaliation by management. Thus, the critical need to better educate miners about their rights and to promptly and thoroughly investigate discrimination complaints. Those efforts are working. The number of requests for temporary reinstatements the Labor Department submitted on behalf of miners who filed discrimination complaints more than tripled from the period of fiscal years 2007-2009 to the period of FY 2010-2012 (through July 31, 2012), increasing from 22 to 71. Furthermore, the Labor Department filed 70 complaints alleging mine safety discrimination during the period of FY 2010-2012 (through July 31, 2012), up from 39 from FY 2007-2009. In June 2011, MSHA released new Web-based training tools to help miners better understand their rights and responsibilities, including "A Guide to Miners' Rights and Responsibilities"; an electronic form for filing an anonymous hazard complaint; a discrimination complaint packet; information about black lung benefits and resources; and a compendium of online videos addressing miners' concerns about unsafe working conditions, hiring decisions, how to refuse unsafe work, the role of supervisors and the role of miners' representatives who travel with federal inspectors. MSHA has instituted other measures to enhance enforcement of miners' rights, including a reorganization of the Office of Assessments, Accountability, Special Enforcement and Investigations to provide enhanced efficiency, staffing, oversight and training of special investigators. A guide for miners' representatives explaining their rights under the Mine Act is slated for completion this fall. The publication will include information on inspections and investigations, filing a hazardous condition complaint, accessing information using MSHA's Data Retrieval System and becoming a miners' representative. All miners have the right to a safe workplace, and the right to identify hazardous conditions and refuse unsafe work without fear of discrimination or retaliation. We at MSHA take the rights of miners and our responsibility to enforce them very seriously, and will continue to work to ensure they are upheld. Joseph Main is the assistant secretary for mine safety and health.