At-large D.C. Councilman Michael Brown is introducing an emergency bill on Tuesday that would preserve 17 housing vouchers set to expire because they were not reissued by the city.

Brown says over the past three years, three times that number have expired without being reissued. Meanwhile there are 10,500 families with housing vouchers in the city while the number of families on the waiting list for a voucher at the end of 2011 was 38,564, according to the D.C. Housing Authority.

Brown said Tuesday's emergency legislation was only a first step in addressing the lapsing vouchers.

"I've been dealing with this for the last couple of years," he said. "Especially since the money is there, I don't understand why I have to [have this conversation] every year."