Wash. Admin. Code § 246-226-050
The CTDIvol for the following CT procedure on phantoms may not exceed the dose limits established in Table 1.
Table 1: Dose limits
| CT Procedure | Phantom Size | Dose Limit:CTDIvol(mGy) |
| Adult head | 16 cm | 80 |
| Adult abdomen | 32 cm | 30 |
| Pediatric head (one year old) | 16 cm | 40 |
| Pediatric abdomen(40 pounds) | 16 cm | 20 |
[Statutory Authority: RCW 70.98.050 and 70.98.080. WSR 16-23-030, § 246-226-050, filed 11/8/16, effective 1/1/17.]