Excerpt from the full fact sheet:

Each year Congress passes a set of 12 appropriations bills, which collectively fund government programs from October 1 of one year to September 30 of the next.  Anti-choice legislators have continually used these "must-pass" bills as vehicles to deny coverage for abortion services to millions of women whose health care is subject to federal control.  Amendments to appropriations bills can restrict abortion coverage for: federal employees and their dependents; residents of the District of Columbia; low-income women and some disabled women who rely on Medicaid and Medicare for their health-care coverage; military personnel and their dependents; Peace Corps volunteers; Native-American women; and women in federal prisons.  Attempts have even been made, through the appropriations process, to restrict funds for women receiving medical care at family-planning clinics funded by the Title X program, the only federal program exclusively dedicated to family planning and reproductive-health services.

Download the fact sheet (PDF)