Relating to requiring an occupational license to practice magnetic resonance imaging physics.

HB 4380 requires medical physicists specializing in magnetic resonance imaging (MRI) physics to obtain an occupational license from the Texas Medical Board. The bill defines "magnetic resonance imaging physics" as the branch of medical physics involving radiofrequency radiation and MRI equipment, and adds it as a licensed specialty under the Texas Occupations Code. Practitioners must hold this specific license to legally perform MRI physics work, alongside existing licenses for other specialties like diagnostic radiology. The law takes effect September 1, 2025, after the Texas Medical Board adopts implementing rules. This directly affects medical physicists working exclusively with MRI technology in Texas.