Gov. Gavin Newsom's team visited Disney World weeks before issuing guidelines that have kept California theme parks closed.
The event will start March 18 and run on select dates through April 5.
The rest of the Grand Californian and Disneyland's other two on-site hotels will remain closed.
Disney CEO Bob Chapek said the ability to remove COVID-19 restrictions largely depends on how quickly people get vaccinated.
No attractions will be open during the event due to California's COVID-19 guidelines.
The bill would allow theme parks in reopen in the "Moderate" tier of the state's COVID-19 reopening plan, rather than the "Minimal" tier.
The recalled workers will allow outdoor dining return to Buena Vista Street.
The theme park industry still wants the state to lower its reopening standards, but even then, no county comes close to meeting those metrics.