Title 42: Public Health
CHAPTER IV: CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED)
SUBCHAPTER B: MEDICARE PROGRAM
PART 423: VOLUNTARY MEDICARE PRESCRIPTION DRUG BENEFIT
Subpart K: Application Procedures and Contracts with Part D plan sponsors
423.516 - Prohibition of midyear implementation of significant new regulatory requirements.
CMS may not implement, other than at the beginning of a calendar year, regulations under this section that impose new, significant regulatory requirements on a PDP sponsor or a prescription drug plan.