The phrase "are nevertheless allowed" is correct and usable in written English.
It can be used to indicate that something is permitted despite certain conditions or objections.
Example: "Even though the rules are strict, exceptions are nevertheless allowed for special circumstances."
Alternatives: "are still permitted" or "are nonetheless accepted".
The family was nevertheless allowed to adopt three more children; each came with a government subsidy.
He was nevertheless allowed to maintain contact with the outside world and to receive visitors.
Bercow interrupted to say the matter did not relate to the chancellor's responsibilities, but Balls was nevertheless allowed to go further.
Though the Russian leaders became suspicious of him, Enver was nevertheless allowed to go to Turkistan with a plan for helping to organize the Central Asian republics.
Although his raffish escapades got him into trouble, he was nevertheless allowed to buy the exalted rank of lieutenant colonel general of the light cavalry in 1653 and was elected to the French Academy in 1665.
The other says that no company may own more than one broadcasting network, and Viacom already owns 50% of a small, newish broadcasting network, UPN.If the merger is nevertheless allowed to go ahead, Mr Redstone and Mr Karmazin will have to work out how to make the broadcast and production assets work together.
His teacher, Father Mertens, told Soegija that he required permission from his parents first; although they refused, Soegija was nevertheless allowed to study Catholicism.
Another investigation, by the Chicago Tribune, found that an economic development group hired to help finance to small businesses never made a single loan, but was nevertheless allowed to keep more than $150,000 when its contract was slashed.
With great caution, one might interpret the pattern as a heavily disturbed quadrupolar or even higher order resonance, which is nevertheless allowed to couple to propagating fields via mediation of the hot spots within the nanosponges.
Nevertheless its usage is still allowed under the auspices of a critical use exemptions (CUE) wherever an adequate alternative is not available [ 3].
