### Human:
What are the conditions that individuals and families must meet under the third definition of homelessness?

### Assistant:
Individuals and families under the third definition of homelessness must meet all of the following four conditions: 1) They must be defined as homeless under other listed federal statutes. 2) They should not have had a lease, ownership interest, or occupancy agreement in permanent housing for the 60 days prior to the homeless assistance application. 3) They must have experienced persistent instability, indicated by two or more moves in the preceding 60 days. 4) They are expected to continue in such a homeless status for an extended period of time due to special needs or barriers.