Who can inject

MD, DO, NP, PA, RN under physician delegation/supervision

Registered nurses (RNs)

Yes, RN may inject under physician delegation and supervision

Nurse practitioners & physician assistants

NP/PA may inject under physician collaboration; independent practice limited

The exam that makes it legal

Required; in-person exam before treatment A valid order or good-faith exam by an authorized provider is what makes an injection lawful — not simply who holds the syringe.

Training expected

No state-mandated injector training beyond licensure.

What to verify in Tennessee

Ensure a physician medical director is formally designated and that all delegation agreements comply with TN Medical Board and Board of Nursing standards.

Primary source: TN Medical Board, TN Board of Nursing

General business information for Tennessee medical-spa owners, current as of 2026 — not legal advice. State boards update rules often; confirm specifics with the Tennessee board (and your own counsel) before you act.

See the full Tennessee regulation profile →