Here’s a Kaiser Health News guide to the Republican’s plan to greatly reduce funding for abortion services, and so-called Title X money.

Reproductive health advocates such as Families USA, Planned Parenthood and NARAL Pro-Choice America argue that eliminating or restricting access to Title X money would cut off vital financial support for health centers that are providing care at steeply discounted rates for low-income patients. According to Adam Sonfield, a senior public policy associate at the Guttmacher Institute, Title X money gives clinics the flexibility to invest in things like outreach and infrastructure—something Medicaid payments don’t account for. The institute also estimates that the contraceptive services offered at Title X centers prevent 973,000 unintended pregnancies each year.