Millions of low-income Americans became eligible on Wednesday for an emergency discount on high-speed internet service and devices to get online, an effort aimed at providing relief to families that have struggled during the pandemic as school, work and health care have moved online.

The Federal Communications Commission’s subsidy program, the Emergency Broadband Benefit, can be used for $50 monthly discounts for individuals on SNAP or Medicaid, recipients of Pell grants, and families with children on free and reduced-price lunch plans. Low-income households on tribal lands can apply for $75 in monthly broadband subsidies. The program also allows for a one-time $100 subsidy for a laptop or tablet.

The F.C.C. said 825 broadband providers have agreed to offer the discounts.

The program, which Congress approved $3.2 billion for late last year, is one of several efforts to bring broadband internet to all American homes. The F.C.C. earlier this week also approved a $7.2 billion program to give students high-speed internet access through schools and libraries. President Biden has promised to make broadband affordable and available for all and has proposed a $100 billion effort to connect every rural and low-income home to high-speed internet service.

The Emergency Broadband Benefit program comes late in the pandemic, with schools and workplaces beginning to open again. The delay was largely because of wrangling over details of the subsidies in Congress and at the F.C.C. during the Trump administration. And it’s unclear what will happen once the one-time emergency benefit fund runs out.

The program will end either when the $3.2 billion fund is depleted or six months after the Department of Health and Human Services declares an end to the pandemic.

“High-speed internet service is vital for families to take advantage of today’s health, education, and workplace opportunities,” Jessica Rosenworcel, the acting chair of the F.C.C., said in a statement. “And the discount for laptops and desktop computers will continue to have positive impact even after this temporary discount program wraps up.”