If you've re-established your credit and can show you've done so for twelve consecutive months (to now), you may be able to.
Depending on the scenario and when certain dates occured, you may be able to or may have to wait.
If you were over your head financially and let the house go, you're looking at three years from when the insurance claim was paid for a new FHA loan.
If you were the victim of an "economic event" where you sustained a reduction in household income of 20% or more for six months, you may be eligible as early as one year after the claim was paid if you've re-established your credit.
To find out when you're eligible again to receive a FHA loan, you can call the FHA resource center @ (800) CALL-FHA (225-5342)
The eligibility date isn't necessarily set in stone if you qualify for the Back-To-Work program.
The only way to know if you can proceed is to contact a lender, explain your situation in full, possibly do a loan application if you meet certain criteria.