In 1988, Arthur joined the Dallas chapter of HACEMOS (Hispanic Association of Communication Employees of Southwestern Bell) an EIO (Employee Initiated Organization). Arthur was elected to several chapter office positions where he assisted and developed best practices and assisted the National Governing Board on national issues where he was mentored and asked to run for National Office. Arthur held every National Office and elected National President in 2001 and re-elected in 2002. As National President, Arthur held meetings with company and community leaders along with AT&T President and CEO, where Hispanic issues and concerns were discussed. A plan of action that included paid equality, management promotion, and senior officer representation was developed with Sr. V.P.-HR and disseminated to all senior officers within AT&T. Arthur also met with National Hispanic Leaders in the community to improve equality within AT&T and the communtiy.
During his 30 year career with AT&T and 20 year membership with HACEMOS Arthur was also:
Vice Chair-Pioneer Diversity Committee- Pioneers of AT&T, President Board of Directors-La Voz Del Anciano (Voice of the Elderly-Dallas County), National President 2001, 2002, EVP-Communications, EVP-Operations, EVP-Membership, EVP-Finance-HACEMOS (Hispanic Association of Communications Employees of AT&T), Member-SBC Joint Diversity Council, Member and Co-Chair Step up to Success-Greater Dallas Hispanic Chamber of Commerce, Advisor to Skyline High School-Dallas Public Schools, Crime Watch Captain-Awarded First Place-City National Night Out-Multi-Family-2010, 2011, Richardson Citizen Police Academy-Class 33, February, 2011. Richardson Citizen Fire Academy-Class 18, March, 2013. Presiding Election Judge-Bexar County.