IRS - You can download forms, look up laws, and read about taxes in plain English or Spanish on the IRS web site.

HNCS - This site contains information on where to write for vital records such as birth, death, marriage, or divorce.

Mercer - You can log into this site for personalized information about your Supplemental Annuity Account balance and to make changes to your Supplemental Annuity Account. You can use the site's Learning Center to obtain information on things such as investment basics, retirement planning, and estate planning (just to name a few). Note that access to this site requires your PIN number. If you do not have your PIN number, contact Mercer at 1-800-685-6474 to request that a copy be mailed to you.

Social Security Administration - The Social Security Administration is in charge of enrolling Americans, collecting contributions from payroll taxes, and providing benefits to seniors, beneficiaries, and disabled persons. The web site allows you to request a detailed earnings history and learn about your coverage under Social Security.