(Bloomberg) — Religious nonprofit groups must formally opt out of a U.S. Department of Health and Human Services mandate if they wish to avoid a requirement that employers provide health insurance coverage for birth control, a federal appeals court said.

The decision is the second major win for Patient Protection and Affordable Care Act implementers at HHS in three weeks. On June 25, the Supreme Court upheld a core component of PPACA, backing the ability of HHS to offer PPACA premium tax credits through the public exchanges it runs.

In Tuesday’s case, the nonprofits said their religious and free-speech rights were violated by an HHS mandate requiring them to actively opt out of a rule requiring them to provide contraceptive coverage as a form of preventive care. HHS established the rule when it developed regulations implementing PPACA preventive services coverage provisions.