The phrase "are required to allow" is correct and usable in written English.
It can be used in contexts where there is a necessity or obligation for someone to permit or enable something.
Example: "All employees are required to allow access to their workstations during security audits."
Alternatives: "must permit" or "are obligated to enable".
They are required to allow the hotel to rent their units when they're not in residence (though the owners do get a portion of the rent).
Councils are required to allow tenants a vote on a proposed transfer and, so far, three-quarters of ballots have gone in favour of a transfer.
Verizon and other large local telephone companies are required to allow competitors' employees free access to the locations they lease on their networks, although they sometimes conduct background checks or require special identification materials from these employees.
Under the U.S. Family and Medical Leave Act, companies with more than 50 employees are required to allow their employees up to 12 weeks of unpaid leave after the birth of a child.
But producers of organic milk are required to allow their cows to spend a certain amount of time grazing, and that does produce a noticeable effect on the fatty acids in the milk.
Generally, three axes are required to allow any posture of an end effector.
In this scenario, convolutional layers with padding are required to allow deeper networks to be trained.
On the other hand, continuous phases are required to allow charge transport toward the electrodes [22].
An internationally agreed classification system and test standards are required to allow interpretation of published results.
In tactile micro coordinate metrology, miniature probing systems are required to allow geometric measurements of miniature, delicate, high precision components.
Furthermore, more accurate long-term studies reporting on treatment protocols for separate clinical situations are required to allow meaningful comparisons.
