The Democratic governor pushed for the bill before its passage in the Legislature, despite a threat by the Obama administration to withhold federal funds.
Assembly Bill 484, by Assemblywoman Susan Bonilla, D-Concord, suspends K-12 standardized testing requirements for the school year now underway and the public posting of that data for potentially two years.
Proponents of the bill said it would spare students and educators from "double-testing" students during a period of transition. Opponents said it could potentially put schools out of compliance with No Child Left Behind.
Following a private event, Brown announced the bill signing on Twitter:
PHOTO: A California Middle School teacher helps a student with a district test during class in Sacramento on Dec. 5, 2012. The Sacramento Bee/Randy Pench