42 CFR 423.516 - Prohibition of midyear implementation of significant new regulatory requirements.

Regulations last checked for updates: Feb 12, 2026

Title 42 - Public Health last revised: Feb 02, 2026

View all text of Subpart K [§ 423.500 - § 423.530]

§ 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.

authority: 42 U.S.C. 1302,1306,1395w,and

source: 70 FR 4525, Jan. 28, 2005, unless otherwise noted.

cite as: 42 CFR 423.516