Is it against the rules for an unmarried couple to live together on section 8?

When both sets of parents grant permission. And no parent is likely to do such.

as long as you include him on the contract your husband can live with you in section 8 but if he is not included then no

In A Tenant Handd Book..

According to the HUD, only those who are on the approved lease are allowed to set up domecile under a home. One could "visit" on a short term time frame, without being considered as a "live-in", but...

no!