Alex Pierce, 13, drowned in a school swimming pool in 2016.
His mother testified at the state legislature this week in support of a bill she says would have saved her son's life.
RELATED: Lawsuit filed against Murrieta Unified School District after teen drowns
Currently, teachers are required to take CPR training once to receive their credential.
The bill would require districts to offer training every two years and require teachers to have valid certification every time they renew their credentials.