CFR > Title 42 - Public Health > CHAPTER IV—CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES > SUBCHAPTER B—MEDICARE PROGRAM (parts 405 to 426) > PART 416—AMBULATORY SURGICAL SERVICES > SUBPART B—General Conditions and Requirements (§416.25 to §416.35) > 416.25—Basic requirements.