The document discusses how the IRS has incrementally increased requirements for hospitals to maintain their 501(c)(3) tax-exempt status through regulations added under section 501(r). Key changes include requiring written financial assistance and emergency care policies, limiting charges for low-income patients, conducting community health needs assessments, and establishing compliance plans. The document argues the IRS has used a "salami tactics" approach of making small, successive changes over several years to substantially change how charitable hospitals must operate to keep their tax exemption without much opposition. Hospitals must now carefully comply with 501(r)’s new complex rules to maintain their tax-exempt status.