A 2015 rule issued by the Obama administration allows work permits for spouses who otherwise could not be employed while H-1B visa holders seek permanent resident status -- a process that can take a decade or longer.
Indian-Americans were a major beneficiary of this provision. More than 100,000 H-4 visa holders have been beneficiary of this rule.
More than 104,000 spouses have been granted work authorisation since the H-4 visa rule was enacted, according to DHS's Citizenship and Immigration Services.
Democratic Congressmen Anna Eshoo, Zoe Lofgren, Ro Khanna, Mark DeSaulnier, Barbara Lee and Jerry McNerney in a letter to the Homeland Security Secretary urged to "reconsider" his plan, saying it would "create significant uncertainty and financial hardship for many highly skilled professionals who are vital to our economy," Silicon Valley- based news agency report said.
In their letter dated March 5, the lawmakers argued that in many areas where H-1B workers live, including Silicon Valley, "it is nearly impossible for a family to live on one income."
The move comes amidst reports that the Trump administration is planning to revoke an Obama-era rule under which spouses of H-1B visas were given work permits.
Earlier, Business and tech industry groups representing Amazon.com Inc., Google, Visa Inc. and other companies urged the Trump administration not to halt work authorisations for spouses of immigrants who have specialty worker H-1B visas and are seeking permanent residency.
The H-1B visa is a non-immigrant visa that allows US companies to employ foreign workers in speciality occupations that require theoretical or technical expertise.
It is typically issued for three to six years to employers to hire a foreign worker. But H-1B holders who have begun the green card process can often renew their work visas indefinitely.
The technology companies depend on it to hire tens of thousands of employees each year from countries like India and China.