Retirement Retirees can join the Union using Form 1187-R United States Office of Personnel Management Website: OPM Social Security Website: http://ssa.gov/myaccount/ Thrift Savings Plan Website: TSP.gov To use the NRLCA Website for retirement, you will need to sign in and then click on retirement at the top of the page or click on the link below again, after signing in on the NRLCA website. NRLCA Retirement Webpage