Can my husband apply for a tourist visa with a green card?

If your husband already holds a green card, it may not be the best choice to apply for a tourist visa. This is because holders of green cards can usually travel and work more conveniently in the United States without applying for a visa.

however, if your husband wants to travel to a country outside the United States, he may need to apply for an American passport or a green card travel document (such as an international travel document of a green card holder) to prove his identity and legal residency when traveling. In this case, he can choose to apply for an American passport or a green card travel document instead of a tourist visa.

In short, if your husband already holds a green card and he wants to travel to a country outside the United States, he can choose to apply for an American passport or a green card travel document instead of a tourist visa.