S. 581Senate117th Congress (2021-2023)In Committee

HAPI Act

Introduced March 3, 2021

AI-Generated Summary

Updated February 7, 2026 at 11:43 PM UTC

The HAPI Act amends the Social Security Act to expand Medicaid coverage for adult vaccines. It requires Medicaid plans to cover these vaccines, eliminates any cost‑sharing for them, and raises the federal matching rate for states that provide the vaccines. The changes affect adults eligible for Medicaid and the states that administer Medicaid programs.

Key Provisions

  • Adds adult vaccines to the list of services Medicaid plans must cover.
  • Prohibits any cost sharing (copays, deductibles) for covered adult vaccines and their administration.
  • Increases the Federal Medical Assistance Percentage for adult vaccines by one percentage point to encourage state participation.

Legislative Activity

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1 earlier action
SenateIntro Referral Latest Action

Read twice and referred to the Committee on Finance.

March 3, 2021

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SenateIntro Referral

Introduced in Senate

March 3, 2021

SenateIntro Referral

Read twice and referred to the Committee on Finance.

March 3, 2021

Bill Text

Latest available legislative text

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Introduced in SenateIssued March 3, 2021

II

117th CONGRESS

1st Session

S. 581

IN THE SENATE OF THE UNITED STATES

March 3, 2021

Mr. Brown introduced the following bill; which was read twice and referred to the Committee on Finance

A BILL

To amend title XIX of the Social Security Act to improve access to adult vaccines under Medicaid.

1.

Short title

This Act may be cited as the Helping Adults Protect Immunity Act or the HAPI Act.

2.

Improving access to adult vaccines under Medicaid

(a)

Requiring medicaid plans To cover adult vaccinations

Section 1902(a)(10)(A) of the Social Security Act (42 U.S.C. 1396a(a)(10)(A)) is amended in the matter preceding clause (i) by inserting (13)(B), after (5),.

(b)

No cost sharing for vaccinations

(1)

General cost-sharing limitations

Section 1916 of the Social Security Act (42 U.S.C. 1396o) is amended—

(A)

in subsection (a)(2)—

(i)

in subparagraph (F), by striking , or and inserting a comma;

(ii)

in subparagraph (G), by striking ; and and inserting , or; and

(iii)

by adding at the end the following new subparagraph:

(H)

vaccines described in section 1905(a)(13)(B) (and the administration of such vaccines); and

; and

(B)

in subsection (b)(2)—

(i)

in subparagraph (F), by striking , or and inserting a comma;

(ii)

in subparagraph (G), by striking ; and and inserting , or; and

(iii)

by adding at the end the following new subparagraph:

(H)

vaccines described in section 1905(a)(13)(B) (and the administration of such vaccines); and

.

(2)

Application to alternative cost sharing

Section 1916A(b)(3)(B) of the Social Security Act (42 U.S.C. 1396o–1(b)(3)(B)) is amended by adding at the end the following new clause:

(xii)

Vaccines described in section 1905(a)(13)(B) (and the administration of such vaccines).

.

(c)

Enhanced FMAP for adult vaccines

Section 1905(b) of the Social Security Act (42 U.S.C. 1396d(b)) is amended—

(1)

by striking and (5) and inserting (5);

(2)

by striking services and vaccines described in subparagraphs (A) and (B) of subsection (a)(13), and prohibits cost-sharing for such services and vaccines and inserting services described in subsection (a)(13)(A), and prohibits cost-sharing for such services;

(3)

by striking medical assistance for such services and vaccines and inserting medical assistance for such services; and

(4)

by inserting , and (6) with respect to medical assistance for vaccines described in subsection (a)(13)(B), the Federal medical assistance percentage, as determined under this subsection and subsection (y) (without regard to paragraph (1)(C) of such subsection), shall be increased by 1 percentage point before the first period.