Factors in Population Growth The key factors in population change are natural increase (the number of births minus the number of deaths), net migration, and the interplay between these elements. These factors are in turn driven by fertility rates, the age structure of the population, mortality rates, life expectancy, and rates of in- and out-migration.
Federal law requires that before signing a lease for housing built before 1978, renters must receive the following from your landlord: An EPA-approved information pamphlet on identifying and controlling lead-based paint hazards, Protect Your Family From Lead In Your Home (PDF).
Landlord disclosures can either be included in the lease or rental agreement, or some other form of writing, and are typically shared with the tenant prior to move in. Federal disclosures include informing a tenant of any lead-based paint hazards to tenants, under Title X, for any property that was built before 1978.