The NUT chairman, Akintoye Hassan, in an interview on Saturday in Lagos, suggested that the issue be treated with urgency.
He mentioned that the cut-off mark is the minimum, but universities do not have to comply as institutions can set a higher cut-off mark.
The association decried shortage of sign language interpreters in public and private places and institutions in the state.
The NLC had organised a mega protest in solidarity with the trade unions in the public universities over their lingering strike.
The union is protesting the non-release of N15 billion and N18 billion revitalisation fund, among other failed agreements by the federal government.
Universities will get N23.5 billion, polytechnics N6 billion and Colleges of Education N4 billion, bringing the total sum to N33.5 billion.
