Applicants who received the newly introduced college students' rental subsidy before 2002 1,1and 15 may not apply for other preferential rental policies at the city level, districts and counties (cities) within1year from the date of implementation of the subsidy measures. Applicants who newly introduced college students' rental subsidies after 20021,10, 15 (inclusive) may apply for other preferential rental policies at the city level, districts and counties (cities). The number of years of rental subsidies that have been enjoyed is included in the total number of years after the merger every six months.