---
type: "Bill"
title: "Medical Occupations - As enacted, establishes provisions governing the practice of certified medical assistants. - Amends TCA Title 4; Title 63 and Title 68."
description: "Medical Occupations - As enacted, establishes provisions governing the practice of certified medical assistants. - Amends TCA Title 4; Title 63 and Title 68."
jurisdiction: "us/states/tn"
legislature: "Tennessee General Assembly"
session: "112"
identifier: "HB 559"
citation: "Tennessee HB 559 (112)"
classification: ["bill"]
subjects: ["Medical Occupations"]
status: "enacted"
primary_sponsors: ["Marsh", "Reeves"]
version_count: 3
action_count: 39
vote_count: 7
first_action: "2021-02-05"
last_action: "2021-05-18"
source: "openstates"
source_identifier: "ocd-bill/65e8fda6-8d4c-448c-81a5-d02b3fbbde1a"
source_url: "http://wapp.capitol.tn.gov/apps/BillInfo/default.aspx?BillNumber=HB0559&GA=112"
source_hash: "71771f86cb5cc759147a460637f5e702c6de29a34a3dffde851f47cf0fe027d2"
vintage: "2026-07-01"
source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
retrieved_at: "2026-07-06"
confidence: "reported"
tags: ["legislation", "bill", "us-tn"]
---

# Tennessee HB 559 (112) — Medical Occupations - As enacted, establishes provisions governing the practice of certified medical assistants. - Amends TCA Title 4; Title 63 and Title 68.

## Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. **Amendment HA0087** (committee substitute) — [source](https://www.capitol.tn.gov/Bills/112/Amend/HA0087.pdf)
2. **Amendment SA0298** (committee substitute) — [source](https://www.capitol.tn.gov/Bills/112/Amend/SA0298.pdf)
3. **Current Version** (committee substitute) — [source](https://www.capitol.tn.gov/Bills/112/Bill/HB0559.pdf)

## Votes

- FLOOR VOTE: REGULAR CALENDAR AS AMENDED PASSAGE ON THIRD CONSIDERATION 4/1/2021 Passed (1) — **89–0** (pass) · lower
- HOUSE CALENDAR & RULES COMMITTEE: H. Placed on Regular Calendar for 4/1/2021 3/25/2021 (2) — **0–0** (fail) · lower
- SENATE HEALTH AND WELFARE COMMITTEE: Recommended for passage with amendment/s, refer to Senate Calendar Committee Ayes 9, Nays 0 PNV 0 4/13/2021 Passed (2) — **9–0** (pass) · upper
- FLOOR VOTE: Third Consideration 4/26/2021 Passed (1) — **29–0** (pass) · upper
- HOUSE HEALTH SUBCOMMITTEE: Rec for pass if am by s/c ref. to Health Committee 3/9/2021 (5) — **0–0** (fail) · lower
- HOUSE GOVERNMENT OPERATIONS COMMITTEE: Rec. for pass; ref to Calendar & Rules Committee 3/22/2021 (3) — **0–0** (pass) · lower
- HOUSE HEALTH COMMITTEE: Rec. for pass. if am., ref. to Government Operations Committee 3/17/2021 (4) — **0–0** (pass) · lower

## Sponsors

- Marsh — primary (person)
- Reeves — primary (person)

## Timeline

The legislative action history — every referral, reading, and vote.

- **2021-02-05** Filed for introduction `introduction, reading-1`
- **2021-02-08** Intro., P1C. `introduction`
- **2021-02-09** Sponsor(s) Added.
- **2021-02-10** Assigned to s/c Health Subcommittee `referral-committee`
- **2021-02-10** P2C, ref. to Health Committee-- Government Operations for Review `referral-committee`
- **2021-02-11** Introduced, Passed on First Consideration `introduction`
- **2021-02-11** Filed for introduction `introduction, reading-1`
- **2021-02-22** Passed on Second Consideration, refer to Senate Health and Welfare Committee
- **2021-02-24** Placed on s/c cal Health Subcommittee for 3/2/2021
- **2021-03-02** Action Def. in s/c Health Subcommittee to 3/9/2021
- **2021-03-03** Placed on s/c cal Health Subcommittee for 3/9/2021
- **2021-03-09** Rec for pass if am by s/c ref. to Health Committee `referral-committee`
- **2021-03-10** Placed on cal. Health Committee for 3/17/2021
- **2021-03-17** Placed on cal. Government Operations Committee for 3/22/2021
- **2021-03-17** Rec. for pass. if am., ref. to Government Operations Committee `committee-passage-favorable`
- **2021-03-22** Rec. for pass; ref to Calendar & Rules Committee `committee-passage-favorable`
- **2021-03-24** Placed on cal. Calendar & Rules Committee for 3/25/2021
- **2021-03-25** H. Placed on Regular Calendar for 4/1/2021
- **2021-03-25** Placed on Senate Health and Welfare Committee calendar for 3/31/2021
- **2021-03-31** Action deferred in Senate Health and Welfare Committee to 4/7/2021
- **2021-04-01** Engrossed; ready for transmission to Sen.
- **2021-04-01** Passed H., as am., Ayes 89, Nays 0, PNV 0 `passage`
- **2021-04-01** H. adopted am. (Amendment 1 - HA0087) `amendment-passage`
- **2021-04-05** Received from House, Passed on First Consideration `introduction`
- **2021-04-07** Placed on Senate Health and Welfare Committee calendar for 4/13/2021
- **2021-04-13** Recommended for passage with amendment/s, refer to Senate Calendar Committee Ayes 9, Nays 0 PNV 0
- **2021-04-23** Placed on Senate Regular Calendar for 4/26/2021
- **2021-04-26** Passed Senate, Ayes 29, Nays 0 `passage`
- **2021-04-26** Amendment withdrawn. (Amendment 1 - SA0298)
- **2021-04-26** Senate substituted House Bill for companion Senate Bill.
- **2021-04-26** Companion House Bill substituted
- **2021-04-28** Enrolled; ready for sig. of H. Speaker.
- **2021-04-30** Signed by H. Speaker
- **2021-05-03** Signed by Senate Speaker
- **2021-05-04** Transmitted to Governor for his action. `executive-receipt`
- **2021-05-11** Signed by Governor. `executive-signature`
- **2021-05-18** Effective date(s) 05/11/2021
- **2021-05-18** Pub. Ch. 396
- **2021-05-18** Comp. became Pub. Ch. 396

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/65e8fda6-8d4c-448c-81a5-d02b3fbbde1a`. Confidence: reported (aggregated from official Tennessee legislature records).