In some cases, when British nationals get nonimmigrant work visas, their spouse and dependent children under 21 (twenty-one) could benefit from derivative visas. They can use these to visit work visa holders while they are staying in the U.S. As with the work visa, this does not entitle them to relocate to the U.S. permanently or benefit from healthcare. D and Q visas do not offer this, however, so if a visiting worker's dependents wish to visit, they will be required to apply for their own visas outright.