• Part 140-143 - PARTS 140-143 [RESERVED]

• Part 144 [§ 144.101 - § 144.214] - PART 144—REQUIREMENTS RELATING TO HEALTH INSURANCE COVERAGE

• Part 145 - PART 145 [RESERVED]

• Part 146 [§ 146.101 - § 146.180] - PART 146—REQUIREMENTS FOR THE GROUP HEALTH INSURANCE MARKET

• Part 147 [§ 147.100 - § 147.212] - PART 147—HEALTH INSURANCE REFORM REQUIREMENTS FOR THE GROUP AND INDIVIDUAL HEALTH INSURANCE MARKETS

• Part 148 [§ 148.101 - § 148.320] - PART 148—REQUIREMENTS FOR THE INDIVIDUAL HEALTH INSURANCE MARKET

• Part 149 [§ 149.10 - § 149.740] - PART 149—SURPRISE BILLING AND TRANSPARENCY REQUIREMENTS

• Part 150 [§ 150.101 - § 150.465] - PART 150—CMS ENFORCEMENT IN GROUP AND INDIVIDUAL INSURANCE MARKETS

• Part 151 - PART 151 [RESERVED]

• Part 152 [§ 152.1 - § 152.45] - PART 152—PRE-EXISTING CONDITION INSURANCE PLAN PROGRAM

• Part 153 [§ 153.10 - § 153.740] - PART 153—STANDARDS RELATED TO REINSURANCE, RISK CORRIDORS, AND RISK ADJUSTMENT UNDER THE AFFORDABLE CARE ACT

• Part 154 [§ 154.101 - § 154.301] - PART 154—HEALTH INSURANCE ISSUER RATE INCREASES: DISCLOSURE AND REVIEW REQUIREMENTS

• Part 155 [§ 155.10 - § 155.1515] - PART 155—EXCHANGE ESTABLISHMENT STANDARDS AND OTHER RELATED STANDARDS UNDER THE AFFORDABLE CARE ACT

• Part 156 [§ 156.10 - § 156.1256] - PART 156—HEALTH INSURANCE ISSUER STANDARDS UNDER THE AFFORDABLE CARE ACT, INCLUDING STANDARDS RELATED TO EXCHANGES

• Part 157 [§ 157.10 - § 157.206] - PART 157—EMPLOYER INTERACTIONS WITH EXCHANGES AND SHOP PARTICIPATION

• Part 158 [§ 158.101 - § 158.615] - PART 158—ISSUER USE OF PREMIUM REVENUE: REPORTING AND REBATE REQUIREMENTS

• Part 159 [§ 159.100 - § 159.120] - PART 159—HEALTH CARE REFORM INSURANCE WEB PORTAL

• Part 160 [§ 160.101 - § 160.552] - PART 160—GENERAL ADMINISTRATIVE REQUIREMENTS

• Part 162 [§ 162.100 - § 162.1902] - PART 162—ADMINISTRATIVE REQUIREMENTS

• Part 163 - PART 163 [RESERVED]

• Part 164 [§ 164.102 - § 164.535] - PART 164—SECURITY AND PRIVACY

• Part 165-169 - PARTS 165-169 [RESERVED]

• Part 170 [§ 170.100 - § 170.599] - PART 170—HEALTH INFORMATION TECHNOLOGY STANDARDS, IMPLEMENTATION SPECIFICATIONS, AND CERTIFICATION CRITERIA AND CERTIFICATION PROGRAMS FOR HEALTH INFORMATION TECHNOLOGY

• Part 171 [§ 171.100 - § 171.403] - PART 171—INFORMATION BLOCKING

• Part 172-179 - PARTS 172-179 [RESERVED]

• Part 180 [§ 180.10 - § 180.110] - PART 180—HOSPITAL PRICE TRANSPARENCY

• Part 181 - PART 181 [RESERVED]

• Part 182 [§ 182.10 - § 182.90] - PART 182—PRICE TRANSPARENCY FOR COVID-19 DIAGNOSTIC TESTS

• Part 183 - PARTS 183 [RESERVED]

• Part 184 [§ 184.10 - § 184.50] - PART 184—PHARMACY BENEFIT MANAGER STANDARDS UNDER THE AFFORDABLE CARE ACT

• Part 185-199 - PARTS 185-199 [RESERVED]