• § 425.600 - Selection of risk model.

• § 425.601 - Establishing, adjusting, and updating the benchmark for agreement periods beginning on or after July 1, 2019, and before January 1, 2024.

• § 425.602 - Establishing, adjusting, and updating the benchmark for an ACO's first agreement period beginning on or before January 1, 2018.

• § 425.603 - Resetting, adjusting, and updating the benchmark for a subsequent agreement period beginning on or before January 1, 2019.

• § 425.604 - Calculation of savings under the one-sided model.

• § 425.605 - Calculation of shared savings and losses under the BASIC track.

• § 425.606 - Calculation of shared savings and losses under Track 2.

• § 425.608 - Determining first year performance for ACOs beginning April 1 or July 1, 2012.

• § 425.609 - Determining performance for 6-month performance years during CY 2019.

• § 425.610 - Calculation of shared savings and losses under the ENHANCED track.

• § 425.611 - Adjustments to Shared Savings Program calculations to address the COVID-19 pandemic.

• § 425.612 - Waivers of payment rules or other Medicare requirements.

• § 425.613 - Telehealth services.

• §§ 425.614-425.629 - §[Reserved]

• § 425.630 - Option to receive advance investment payments.

• §§ 425.631-425.649 - §[Reserved]

• § 425.650 - Benchmarking methodology.

• § 425.652 - Establishing, adjusting, and updating the benchmark for agreement periods beginning on January 1, 2024, and in subsequent years.

• § 425.654 - Calculating county expenditures and regional expenditures.

• § 425.655 - Calculating the regional risk score growth cap adjustment factor.

• § 425.656 - Calculating the regional adjustment to the historical benchmark.

• § 425.658 - Calculating the prior savings adjustment to the historical benchmark.

• § 425.659 - Calculating risk scores used in Shared Savings Program benchmark calculations.

• § 425.660 - Accountable Care Prospective Trend (ACPT).

• § 425.661-425.669 - [Reserved]

• § 425.670 - Adjustments to mitigate the impact of significant, anomalous, and highly suspect billing activity on Shared Savings Program financial calculations involving calendar year 2023.