HB 637 — Maryland
Public Health - Recommendations for Immunizations, Screenings, and Preventive Services - Pharmacist Administration and Required Health Insurance Coverage (The Vax Act)
Requiring the Secretary of Health to issue recommendations for certain immunizations, screenings, and preventive services based on certain evidence-based scientific and clinical guidance; requiring the Secretary, before adopting a recommendation for a certain preventive service, to hold a notice and comment period, obtain a certain analysis from the Maryland Health Care Commission, and cite the basis for the recommendation; altering the health insurance coverage requirements for certain immunizations, screenings, and services; etc.
Latest action: Approved by the Governor - Chapter 7 · Apr 14, 2026
Synopsis written by the legislature's own staff, as published on the official bill page. Status label is derived from the recorded actions. The full text below is the record.
Committees: Health (House of Delegates); Finance (Senate)
Updated Apr 22, 2026
Timeline
First Reading Health
Jan 30, 2026 · House of Delegates
Hearing 2/12 at 1:00 p.m.
Feb 4, 2026 · House of Delegates
Hearing canceled
Feb 5, 2026 · House of Delegates
Hearing 2/26 at 1:00 p.m.
Feb 5, 2026 · House of Delegates
Hearing canceled
Feb 26, 2026 · House of Delegates
Hearing 2/26 at 1:30 p.m.
Feb 26, 2026 · House of Delegates
Favorable with Amendments Report by Health
Mar 20, 2026 · House of Delegates
Favorable with Amendments {
Mar 20, 2026 · House of Delegates
Motion Special Order until Next Session (Delegate Arikan) Adopted
Mar 20, 2026 · House of Delegates
Floor Amendment {
Mar 20, 2026 · House of Delegates
Floor Amendment {
Mar 20, 2026 · House of Delegates
Second Reading Passed with Amendments
Mar 20, 2026 · House of Delegates
Third Reading Passed
Mar 21, 2026 · House of Delegates
Referred Finance
Mar 23, 2026 · Senate
Favorable Report by Finance
Apr 6, 2026 · Senate
Favorable Adopted
Apr 7, 2026 · Senate
Second Reading Passed
Apr 7, 2026 · Senate
Third Reading Passed
Apr 8, 2026 · Senate
Returned Passed
Apr 9, 2026 · House of Delegates
Approved by the Governor - Chapter 7
Apr 14, 2026 · executive
Sponsored by Gabriel Acevero, Nick Allen, Marlon Amprey, Dylan Behler, Harry Bhandari, Adrian Boafo, Regina Boyce, Derrick Coley, Eric Ebersole, Mark Edelson, Diana Fennell, Linda Foley, Cathi Forbes, Michele Guyton, Andrea Harrison, Terri Hill, Marvin Holmes, Julian Ivey, Dana Jones, Aaron Kaufman, Robbyn Lewis, Bernice Mireku-North, David Moon, Gabriel Moreno, Darrell Odom, Julie Palakovich Carr, Cheryl Pasteur, Edith Patterson, Scott Phillips, Andrew Pruski, Lily Qi, Denise Roberts, Mike Rogers, Kim Ross, Malcolm Ruff, Gary Simmons, Jared Solomon, Ryan Spiegel, Vaughn Stewart, Deni Taveras, Veronica Turner, Joe Vogel, Courtney Watson, Jennifer White Holland, Greg Wims, Jamila Woods, Chao Wu, Natalie Ziegler, Heather Bagnall Tudball, Bonnie Cullison, Pam Guzzone, Lesley Lopez, Sandy Rosenberg, Teresa Woorman, Speaker, Administration, Martinez
House of Delegates vote — 37–92
FLA Del. Miller /203925/1 · Mar 8, 2026 · result: fail
37 yea · 92 nay · 12 absent, excused, abstain or not voting
House of Delegates vote — 37–94
FLA Del. Arikan /863029/1 · Mar 8, 2026 · result: fail
37 yea · 94 nay · 10 absent, excused, abstain or not voting
House of Delegates vote — 98–32
On Third Reading · Mar 9, 2026 · result: pass
98 yea · 32 nay · 11 absent, excused, abstain or not voting
Senate vote — 31–13
On Third Reading · Mar 20, 2026 · result: pass
31 yea · 13 nay · 3 absent, excused, abstain or not voting
Official records. Maryland legislators, bills and roll-call votes from the Maryland General Assembly, imported through Open States on Oct 27, 2026 (partial import — not yet the full session). Accuracy review against the official site is still under way. Campaign-finance records for Maryland are not imported yet.