Workers who are not eligible for regular unemployment benefits can now apply online for the federal Pandemic Unemployment Assistance program, according to an announcement from Massachusetts governor Charlie Baker’s office.

The program, part of the CARES Act, provides up to 39 weeks of unemployment benefits for people who are out of work due to Covid-19, in themselves or a family member, but do not qualify for regular or extended benefits, according to the announcement. Gig workers, the self-employed, independent contractors and those with limited work histories are eligible to apply.

All approved applications will initially receive the minimum weekly benefit amount, plus the additional $600 weekly Federal Pandemic Unemployment Compensation benefit. The initial benefit amount may be adjusted upward once a worker’s wages are certified.

Weekly benefits, including any increases, are retroactive to Jan. 27 or the date the worker became unemployed, whichever is more recent, as long as the cause was Covid-19.

Application information is posted at mass.gov/pua.