Prohibit means to forbid, prevent or hinder.
e.g. a law prohibiting smoking may forbid you to smoke in certain areas or under a certain age.
e.g. A Fungicide wash may prevent of at least hinder the growth of fungus.
Shools in Tunisia are not religious, the government encourage the secularism and prohibt veil in all places in schools, universities, and public places.
For the Tax Credit Program ( LIHTC) The IRS does not have any restrictions regarding felons being able to rent tax credit housing, however the IRS does permit Owner/Agents to devolope and enforce their own screening criteria which could prohibt the rental to a felon. While the Tax credit program is a federal IRS program it is monitiered by the State Housing Finanace Agencies which may have more restrictive requirements. ( In example, the State of OK does have restrictions on rent to felons)