---
kind: "section"
citation: "42 U.S.C. § 1395w–27a"
title: "42"
title_heading: "The Public Health and Welfare"
number: "1395w–27a"
heading: "Special rules for MA regional plans"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/42/1395w-27a"
units:
  - "Chapter 7 — Social Security"
  - "Subchapter XVIII — Health Insurance for Aged and Disabled"
  - "Part C — Medicare+Choice Program"
---

# §1395w–27a. Special rules for MA regional plans

- (a) **Regional service area; establishment of MA regions—**
  - (1) **Coverage of entire MA region—** The service area for an [MA regional plan](/usc/42/1395w–28.md?p=b-4) shall consist of an entire MA region established under [paragraph (2)](#a-2) and the provisions of [section 1395w–24(h) of this title](/usc/42/1395w–24.md?p=h) shall not apply to such a plan.
  - (2) **Establishment of MA regions—**
    - (A) **MA region—** For purposes of this subchapter, the term “MA region” means such a region within the 50 [States](/usc/42/619.md?p=5) and the District of Columbia as established by the [Secretary](/usc/42/1301.md?p=a-6) under this paragraph.
    - (B) **Establishment—**
      - (i) **Initial establishment—** Not later than January 1, 2005, the [Secretary](/usc/42/1301.md?p=a-6) shall first establish and publish MA regions.
      - (ii) **Periodic review and revision of service areas—** The [Secretary](/usc/42/1301.md?p=a-6) may periodically review MA regions under this paragraph and, based on such review, may revise such regions if the [Secretary](/usc/42/1301.md?p=a-6) determines such revision to be appropriate.
    - (C) **Requirements for MA regions—** The [Secretary](/usc/42/1301.md?p=a-6) shall establish, and may revise, MA regions under this paragraph in a manner consistent with the following:
      - (i) **Number of regions—** There shall be no fewer than 10 regions, and no more than 50 regions.
      - (ii) **Maximizing availability of plans—** The regions shall maximize the availability of [MA regional plans](/usc/42/1395w–28.md?p=b-4) to all MA eligible individuals without regard to health status, especially those residing in rural areas.
    - (D) **Market survey and analysis—** Before establishing MA regions, the [Secretary](/usc/42/1301.md?p=a-6) shall conduct a market survey and analysis, [including](/usc/42/1301.md?p=b) an examination of current insurance markets, to determine how the regions should be established.
  - (3) **National plan—** Nothing in this subsection shall be construed as preventing an [MA regional plan](/usc/42/1395w–28.md?p=b-4) from being offered in more than one MA region ([including](/usc/42/1301.md?p=b) all regions).
- (b) **Application of single deductible and catastrophic limit on out-of-pocket expenses—** An [MA regional plan](/usc/42/1395w–28.md?p=b-4) shall include the following:
  - (1) **Single deductible—** Any deductible for benefits under the original medicare fee-for-service program option shall be a single deductible (instead of a separate inpatient [hospital](/usc/42/300s–3.md?p=1) deductible and a part B deductible) and may be applied differentially for in-network services and may be waived for preventive or other items and services.
  - (2) **Catastrophic limit—**
    - (A) **In-network—** A catastrophic limit on out-of-pocket expenditures for in-network benefits under the original medicare fee-for-service program option.
    - (B) **Total—** A catastrophic limit on out-of-pocket expenditures for all benefits under the original medicare fee-for-service program option.
- (c) **Portion of total payments to an organization subject to risk for 2006 and 2007—**
  - (1) **Application of risk corridors—**
    - (A) **In general—** This subsection shall only apply to [MA regional plans](/usc/42/1395w–28.md?p=b-4) offered during 2006 or 2007.
    - (B) **Notification of allowable costs under the plan—** In the case of an MA organization that offers an [MA regional plan](/usc/42/1395w–28.md?p=b-4) in an MA region in 2006 or 2007, the organization shall notify the [Secretary](/usc/42/1301.md?p=a-6), before such date in the succeeding year as the [Secretary](/usc/42/1301.md?p=a-6) specifies, of—
      - (i) its total amount of costs that the organization incurred in providing benefits covered under the original medicare fee-for-service program option for all enrollees under the plan in the region in the year and the portion of such costs that is attributable to administrative expenses described in [subparagraph (C)](#c-1-C); and
      - (ii) its total amount of costs that the organization incurred in providing rebatable integrated benefits (as defined in [subparagraph (D)](#c-1-D)) and with respect to such benefits the portion of such costs that is attributable to administrative expenses described in [subparagraph (C)](#c-1-C) and not described in clause (i) of this subparagraph.
    - (C) **Allowable costs defined—** For purposes of this subsection, the term “allowable costs” means, with respect to an [MA regional plan](/usc/42/1395w–28.md?p=b-4) for a year, the total amount of costs described in [subparagraph (B)](#c-1-B) for the plan and year, reduced by the portion of such costs attributable to administrative expenses incurred in providing the benefits described in such subparagraph.
    - (D) **Rebatable integrated benefits—** For purposes of this subsection, the term “rebatable integrated benefits” means such non-[drug](/usc/42/11851.md?p=4) supplemental benefits under subclause (I) of [section 1395w–24(b)(1)(C)(ii) of this title](/usc/42/1395w–24.md?p=b-1-C-ii) pursuant to a rebate under such section that the [Secretary](/usc/42/1301.md?p=a-6) determines are integrated with the benefits described in [subparagraph (B)(i)](#c-1-B-i).
  - (2) **Adjustment of payment—**
    - (A) **No adjustment if allowable costs within 3 percent of target amount—** If the allowable costs for the plan for the year are at least 97 percent, but do not exceed 103 percent, of the target amount for the plan and year, there shall be no payment adjustment under this subsection for the plan and year.
    - (B) **Increase in payment if allowable costs above 103 percent of target amount—**
      - (i) **Costs between 103 and 108 percent of target amount—** If the allowable costs for the plan for the year are greater than 103 percent, but not greater than 108 percent, of the target amount for the plan and year, the [Secretary](/usc/42/1301.md?p=a-6) shall increase the total of the monthly payments made to the organization offering the plan for the year under [section 1395w–23(a) of this title](/usc/42/1395w–23.md?p=a) by an amount equal to 50 percent of the difference between such allowable costs and 103 percent of such target amount.
      - (ii) **Costs above 108 percent of target amount—** If the allowable costs for the plan for the year are greater than 108 percent of the target amount for the plan and year, the [Secretary](/usc/42/1301.md?p=a-6) shall increase the total of the monthly payments made to the organization offering the plan for the year under [section 1395w–23(a) of this title](/usc/42/1395w–23.md?p=a) by an amount equal to the sum of—
        - (I) 2.5 percent of such target amount; and
        - (II) 80 percent of the difference between such allowable costs and 108 percent of such target amount.
    - (C) **Reduction in payment if allowable costs below 97 percent of target amount—**
      - (i) **Costs between 92 and 97 percent of target amount—** If the allowable costs for the plan for the year are less than 97 percent, but greater than or equal to 92 percent, of the target amount for the plan and year, the [Secretary](/usc/42/1301.md?p=a-6) shall reduce the total of the monthly payments made to the organization offering the plan for the year under [section 1395w–23(a) of this title](/usc/42/1395w–23.md?p=a) by an amount (or otherwise recover from the plan an amount) equal to 50 percent of the difference between 97 percent of the target amount and such allowable costs.
      - (ii) **Costs below 92 percent of target amount—** If the allowable costs for the plan for the year are less than 92 percent of the target amount for the plan and year, the [Secretary](/usc/42/1301.md?p=a-6) shall reduce the total of the monthly payments made to the organization offering the plan for the year under [section 1395w–23(a) of this title](/usc/42/1395w–23.md?p=a) by an amount (or otherwise recover from the plan an amount) equal to the sum of—
        - (I) 2.5 percent of such target amount; and
        - (II) 80 percent of the difference between 92 percent of such target amount and such allowable costs.
    - (D) **Target amount described—** For purposes of this paragraph, the term “target amount” means, with respect to an [MA regional plan](/usc/42/1395w–28.md?p=b-4) offered by an organization in a year, an amount equal to—
      - (i) the sum of—
        - (I) the total monthly payments made to the organization for enrollees in the plan for the year that are attributable to benefits under the original medicare fee-for-service program option (as defined in [section 1395w–22(a)(1)(B) of this title](/usc/42/1395w–22.md?p=a-1-B));
        - (II) the total of the MA monthly basic beneficiary premium collectable for such enrollees for the year; and
        - (III) the total amount of the rebates under [section 1395w–24(b)(1)(C)(ii) of this title](/usc/42/1395w–24.md?p=b-1-C-ii) that are attributable to rebatable integrated benefits; reduced by
      - (ii) the amount of administrative expenses assumed in the bid insofar as the bid is attributable to benefits described in clause [(i)(I)](#c-2-D-i-I) or [(i)(III)](#c-2-D-i-III).
  - (3) **Disclosure of information—**
    - (A) **In general—** Each contract under this part shall provide—
      - (i) that an MA organization offering an [MA regional plan](/usc/42/1395w–28.md?p=b-4) shall provide the [Secretary](/usc/42/1301.md?p=a-6) with such information as the [Secretary](/usc/42/1301.md?p=a-6) determines is necessary to carry out this subsection; and
      - (ii) that, pursuant to [section 1395w–27(d)(2)(B) of this title](/usc/42/1395w–27.md?p=d-2-B), the [Secretary](/usc/42/1301.md?p=a-6) has the right to inspect and audit any books and records of the organization that pertain to the information regarding costs provided to the [Secretary](/usc/42/1301.md?p=a-6) under [paragraph (1)(B)](#c-1-B).
    - (B) **Restriction on use of information—** Information disclosed or obtained pursuant to the provisions of this subsection may be used by officers, employees, and contractors of the Department of Health and Human Services only for the purposes of, and to the extent necessary in, carrying out this subsection.
- (d) **Organizational and financial requirements—**
  - (1) **In general—** In the case of an MA organization that is offering an [MA regional plan](/usc/42/1395w–28.md?p=b-4) in an MA region and—
    - (A) meets the requirements of [section 1395w–25(a)(1) of this title](/usc/42/1395w–25.md?p=a-1) with respect to at least one such [State](/usc/42/619.md?p=5) in such region; and
    - (B) with respect to each other [State](/usc/42/619.md?p=5) in such region in which it does not meet requirements, it demonstrates to the satisfaction of the [Secretary](/usc/42/1301.md?p=a-6) that it has filed the necessary application to meet such requirements,

    the [Secretary](/usc/42/1301.md?p=a-6) may waive such requirement with respect to each [State](/usc/42/619.md?p=5) described in [subparagraph (B)](#d-1-B) for such period of time as the [Secretary](/usc/42/1301.md?p=a-6) determines appropriate for the timely processing of such an application by the [State](/usc/42/619.md?p=5) (and, if such application is denied, through the end of such plan year as the [Secretary](/usc/42/1301.md?p=a-6) determines appropriate to provide for a transition).

  - (2) **Selection of appropriate State—** In applying [paragraph (1)](#d-1) in the case of an MA organization that meets the requirements of [section 1395w–25(a)(1) of this title](/usc/42/1395w–25.md?p=a-1) with respect to more than one [State](/usc/42/619.md?p=5) in a region, the organization shall select, in a manner specified by the [Secretary](/usc/42/1301.md?p=a-6) among such [States](/usc/42/619.md?p=5), one [State](/usc/42/619.md?p=5) the rules of which shall apply in the case of the [States](/usc/42/619.md?p=5) described in [paragraph (1)(B)](#d-1-B).
- (e) **Repealed. Pub. L. 111–148, title X, § 10327(c)(1), Mar. 23, 2010, 124 Stat. 964—**
- (f) **Computation of applicable MA region-specific non-drug monthly benchmark amounts—**
  - (1) **Computation for regions—** For purposes of [section 1395w–23(j)(2) of this title](/usc/42/1395w–23.md?p=j-2) and this section, subject to [subsection (e)](#e), the term “MA region-specific non-[drug](/usc/42/11851.md?p=4) monthly benchmark amount” means, with respect to an MA region for a month in a year, the sum of the 2 components described in [paragraph (2)](#f-2) for the region and year. The [Secretary](/usc/42/1301.md?p=a-6) shall compute such benchmark amount for each MA region before the beginning of each annual, coordinated election period under [section 1395w–21(e)(3)(B) of this title](/usc/42/1395w–21.md?p=e-3-B) for each year (beginning with 2006).
  - (2) **2 components—** For purposes of [paragraph (1)](#f-1), the 2 components described in this paragraph for an MA region and a year are the following:
    - (A) **Statutory component—** The product of the following:
      - (i) **Statutory region-specific non-drug amount—** The statutory region-specific non-[drug](/usc/42/11851.md?p=4) amount (as defined in [paragraph (3)](#f-3)) for the region and year.
      - (ii) **Statutory national market share—** The statutory national market share percentage, determined under [paragraph (4)](#f-4) for the year.
    - (B) **Plan-bid component—** The product of the following:
      - (i) **Weighted average of MA plan bids in region—** The weighted average of the plan bids for the region and year (as determined under [paragraph (5)(A)](#f-5-A)).
      - (ii) **Non-statutory market share—** 1 minus the statutory national market share percentage, determined under [paragraph (4)](#f-4) for the year.
  - (3) **Statutory region-specific non-drug amount—** For purposes of [paragraph (2)(A)(i)](#f-2-A-i), the term “statutory region-specific non-[drug](/usc/42/11851.md?p=4) amount” means, for an MA region and year, an amount equal the sum (for each [MA local area](/usc/42/1395w–28.md?p=c-5) within the region) of the product of—
    - (A) MA area-specific non-[drug](/usc/42/11851.md?p=4) monthly benchmark amount under [section 1395w–23(j)(1)(A) of this title](/usc/42/1395w–23.md?p=j-1-A) for that area and year; and
    - (B) the number of MA eligible individuals residing in the local area, divided by the total number of MA eligible individuals residing in the region.
  - (4) **Computation of statutory market share percentage—**
    - (A) **In general—** The [Secretary](/usc/42/1301.md?p=a-6) shall determine for each year a statutory national market share percentage that is equal to the proportion of MA eligible individuals nationally who were not enrolled in an [MA plan](/usc/42/1395w–151.md?p=a-8) during the reference month.
    - (B) **Reference month defined—** For purposes of this part, the term “reference month” means, with respect to a year, the most recent month during the previous year for which the [Secretary](/usc/42/1301.md?p=a-6) determines that data are available to compute the percentage specified in [subparagraph (A)](#f-4-A) and other relevant percentages under this part.
  - (5) **Determination of weighted average MA bids for a region—**
    - (A) **In general—** For purposes of [paragraph (2)(B)(i)](#f-2-B-i), the weighted average of plan bids for an MA region and a year is the sum, for [MA regional plans](/usc/42/1395w–28.md?p=b-4) described in [subparagraph (D)](#f-5-D) in the region and year, of the products (for each such plan) of the following:
      - (i) **Monthly MA statutory non-drug bid amount—** The unadjusted MA statutory non-[drug](/usc/42/11851.md?p=4) monthly bid amount for the plan.
      - (ii) **Plan’s share of MA enrollment in region—** The factor described in [subparagraph (B)](#f-5-B) for the plan.
    - (B) **Plan’s share of MA enrollment in region—**
      - (i) **In general—** Subject to the succeeding provisions of this subparagraph, the factor described in this subparagraph for a plan is equal to the number of individuals described in [subparagraph (C)](#f-5-C) for such plan, divided by the total number of such individuals for all [MA regional plans](/usc/42/1395w–28.md?p=b-4) described in [subparagraph (D)](#f-5-D) for that region and year.
      - (ii) **Single plan rule—** In the case of an MA region in which only a single [MA regional plan](/usc/42/1395w–28.md?p=b-4) is being offered, the factor described in this subparagraph shall be equal to 1.
      - (iii) **Equal division among multiple plans in year in which plans are first available—** In the case of an MA region in the first year in which any [MA regional plan](/usc/42/1395w–28.md?p=b-4) is offered, if more than one [MA regional plan](/usc/42/1395w–28.md?p=b-4) is offered in such year, the factor described in this subparagraph for a plan shall (as specified by the [Secretary](/usc/42/1301.md?p=a-6)) be equal to—
        - (I) 1 divided by the number of such plans offered in such year; or
        - (II) a factor for such plan that is based upon the organization’s estimate of projected enrollment, as reviewed and adjusted by the [Secretary](/usc/42/1301.md?p=a-6) to ensure reasonableness and as is certified by the Chief Actuary of the Centers for Medicare & Medicaid Services.
    - (C) **Counting of individuals—** For purposes of [subparagraph (B)(i)](#f-5-B-i), the [Secretary](/usc/42/1301.md?p=a-6) shall count for each [MA regional plan](/usc/42/1395w–28.md?p=b-4) described in [subparagraph (D)](#f-5-D) for an MA region and year, the number of individuals who reside in the region and who were enrolled under such plan under this part during the reference month.
    - (D) **Plans covered—** For an MA region and year, an [MA regional plan](/usc/42/1395w–28.md?p=b-4) described in this subparagraph is an [MA regional plan](/usc/42/1395w–28.md?p=b-4) that is offered in the region and year and was offered in the region in the reference month.
- (g) **Election of uniform coverage determination—** Instead of applying [section 1395w–22(a)(2)(C) of this title](/usc/42/1395w–22.md?p=a-2-C) with respect to an [MA regional plan](/usc/42/1395w–28.md?p=b-4), the organization offering the plan may elect to have a local coverage determination for the entire MA region be the local coverage determination applied for any part of such region (as selected by the organization).
- (h) **Assuring network adequacy—**
  - (1) **In general—** For purposes of enabling MA organizations that offer [MA regional plans](/usc/42/1395w–28.md?p=b-4) to meet applicable provider access requirements under [section 1395w–22 of this title](/usc/42/1395w–22.md) with respect to such plans, the [Secretary](/usc/42/1301.md?p=a-6) may provide for payment under this section to an essential [hospital](/usc/42/300s–3.md?p=1) that provides inpatient [hospital](/usc/42/300s–3.md?p=1) services to enrollees in such a plan where the MA organization offering the plan certifies to the [Secretary](/usc/42/1301.md?p=a-6) that the organization was unable to reach an agreement between the [hospital](/usc/42/300s–3.md?p=1) and the organization regarding provision of such services under the plan. Such payment shall be available only if—
    - (A) the organization provides assurances satisfactory to the [Secretary](/usc/42/1301.md?p=a-6) that the organization will make payment to the [hospital](/usc/42/300s–3.md?p=1) for inpatient [hospital](/usc/42/300s–3.md?p=1) services of an amount that is not less than the amount that would be payable to the [hospital](/usc/42/300s–3.md?p=1) under [section 1395ww of this title](/usc/42/1395ww.md) with respect to such services; and
    - (B) with respect to specific inpatient [hospital](/usc/42/300s–3.md?p=1) services provided to an enrollee, the [hospital](/usc/42/300s–3.md?p=1) demonstrates to the satisfaction of the [Secretary](/usc/42/1301.md?p=a-6) that the [hospital](/usc/42/300s–3.md?p=1)’s costs of such services exceed the payment amount described in [subparagraph (A)](#h-1-A).
  - (2) **Payment amounts—** The payment amount under this subsection for inpatient [hospital](/usc/42/300s–3.md?p=1) services provided by a [subsection (d)](#d) [hospital](/usc/42/300s–3.md?p=1) to an enrollee in an [MA regional plan](/usc/42/1395w–28.md?p=b-4) shall be, subject to the limitation of funds under [paragraph (3)](#h-3), the amount (if any) by which—
    - (A) the amount of payment that would have been paid for such services under this subchapter if the enrollees were covered under the original medicare fee-for-service program option and the [hospital](/usc/42/300s–3.md?p=1) were a critical access [hospital](/usc/42/300s–3.md?p=1); exceeds
    - (B) the amount of payment made for such services under [paragraph (1)(A)](#h-1-A).
  - (3) **Available amounts—** There shall be available for payments under this subsection—
    - (A) in 2006, $25,000,000; and
    - (B) in each succeeding year the amount specified in this paragraph for the preceding year increased by the market basket percentage increase (as defined in [section 1395ww(b)(3)(B)(iii) of this title](/usc/42/1395ww.md?p=b-3-B-iii)) for the [fiscal year](/usc/42/619.md?p=3) ending in such succeeding year.

    Payments under this subsection shall be made from the Federal [Hospital](/usc/42/300s–3.md?p=1) Insurance Trust Fund.

  - (4) **Essential hospital—** In this subsection, the term “essential [hospital](/usc/42/300s–3.md?p=1)” means, with respect to an [MA regional plan](/usc/42/1395w–28.md?p=b-4) offered by an MA organization, a [subsection (d)](#d) [hospital](/usc/42/300s–3.md?p=1) (as defined in [section 1395ww(d) of this title](/usc/42/1395ww.md?p=d)) that the [Secretary](/usc/42/1301.md?p=a-6) determines, based upon an application filed by the organization with the [Secretary](/usc/42/1301.md?p=a-6), is necessary to meet the requirements referred to in [paragraph (1)](#h-1) for such plan.

## Source credit

(Aug. 14, 1935, ch. 531, title XVIII, § 1858, as added Pub. L. 108–173, title II, § 221(c), Dec. 8, 2003, 117 Stat. 2181; amended Pub. L. 109–432, div. B, title III, § 301, Dec. 20, 2006, 120 Stat. 2990; Pub. L. 110–48, § 3, July 18, 2007, 121 Stat. 244; Pub. L. 110–173, title I, § 110, Dec. 29, 2007, 121 Stat. 2497; Pub. L. 110–275, title I, § 166, July 15, 2008, 122 Stat. 2575; Pub. L. 111–8, div. G, title I, § 1301(f), Mar. 11, 2009, 123 Stat. 829; Pub. L. 111–148, title III, § 3201(a)(2)(C), (f)(2), title X, § 10327(c)(1), Mar. 23, 2010, 124 Stat. 444, 450, 964; Pub. L. 111–152, title I, § 1102(a), Mar. 30, 2010, 124 Stat. 1040.)

## Notes

### Editorial Notes

### Amendments

2010—Subsec. (e). Pub. L. 111–148, § 10327(c)(1), struck out subsec. (e) which related to the MA Regional Plan Stabilization Fund.

Subsec. (f)(1). Pub. L. 111–148, § 3201(a)(2)(C)(i), (f)(2)(A), which directed substitution of “1395w–23(j)(1)(B)” for “1395w–23(j)(2)” and “subsections (e) and (i)” for “subsection (e)”, respectively, was repealed by Pub. L. 111–152, § 1102(a). See Effective Date of 2010 Amendment note below.

Subsec. (f)(3)(A). Pub. L. 111–148, § 3201(a)(2)(C)(ii), which directed substitution of “1395w–23(j)(1)(A)(i)” for “1395w–23(j)(1)(A)”, was repealed by Pub. L. 111–152, § 1102(a). See Effective Date of 2010 Amendment note below.

Subsec. (i). Pub. L. 111–148, § 3201(f)(2)(B), which directed addition of subsec. (i), was repealed by Pub. L. 111–152, § 1102(a). As enacted, text read as follows: “For years beginning with 2014, the Secretary shall apply the performance bonuses under section 1395w–23(n) of this title (relating to bonuses for care coordination and management, quality performance, and new and low enrollment MA plans) to MA regional plans in a similar manner as such performance bonuses apply to MA plans under such subsection.” See Effective Date of 2010 Amendment note below.

2009—Subsec. (e)(7). Pub. L. 111–8 struck out par. (7) which related to biennial GAO reports to be submitted by the Comptroller General to the Secretary and Congress.

2008—Subsec. (e)(2)(A)(i). Pub. L. 110–275 substituted “2014” for “2013” and “$1” for “$1,790,000,000”.

2007—Subsec. (e)(2)(A)(i). Pub. L. 110–173, which directed substitution of “the Fund during 2013, $1,790,000,000.” for “the Fund” and all that follows, was executed by making the substitution for “the Fund—

“(I) during 2012, $1,600,000,000; and

“(II) during 2013, $1,790,000,000.”

to reflect the probable intent of Congress.

Pub. L. 110–48 substituted “the Fund—

“(I) during 2012, $1,600,000,000; and

“(II) during 2013, $1,790,000,000.”

for “the Fund during the period beginning on January 1, 2012, and ending on December 31, 2013, a total of $3,500,000,000.”

2006—Subsec. (e)(2)(A)(i). Pub. L. 109–432 substituted “2012” for “2007” and “$3,500,000,000” for “$10,000,000,000”.

### Statutory Notes and Related Subsidiaries

### Effective Date of 2010 Amendment

Repeal of sections 3201 and 3203 of Pub. L. 111–148 and the amendments made by such sections, effective as if included in the enactment of Pub. L. 111–148, see section 1102(a) of Pub. L. 111–152, set out as a note under section 1395w–21 of this title.

### Effective Date

Section applicable with respect to plan years beginning on or after Jan. 1, 2006, see section 223(a) of Pub. L. 108–173, set out as an Effective Date of 2003 Amendment note under section 1395w–21 of this title.

### Elimination of MA Regional Plan Stabilization Fund; Transition

Pub. L. 111–148, title X, § 10327(c)(2), Mar. 23, 2010, 124 Stat. 964, provided that: “Any amount contained in the MA Regional Plan Stabilization Fund as of the date of the enactment of this Act [Mar. 23, 2010] shall be transferred to the Federal Supplementary Medical Insurance Trust Fund.”