The United States is set to make a visa-bond programme permanent for citizens of 50 countries, including Bangladesh.
The measure will apply to applicants for B-1 business visas and B-2 tourist visas.
Under the notice, consular officers may require a bond of up to $20,000 before issuing a visa when they consider it necessary.
The rule is due to take effect on August 3.
It follows a pilot introduced in 2025 that permitted bonds of $5,000, $10,000 or up to $15,000.
The $5,000 option has been removed, while the maximum potential bond has increased to $20,000.
Thirty of the countries covered are in Africa, and Bangladesh, Nepal and Bhutan are identified as the South Asian countries included.
US officials say the policy is intended to reduce cases in which visitors remain after their visas expire.
Immigration-rights advocates argue that the policy could deter legitimate travel and say the administration's broader immigration approach raises concerns about free expression, due process and racial discrimination.
The supplied material does not specify the full list of covered countries, how consular officers will decide when to request a bond, or the terms governing its return or forfeiture.