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).
For example, a certified lead company must have one or more certified lead-safe renovators to assign to renovation projects. The same is true for a certified lead company wishing to offer to conduct lead abatement work: Everyone on the abatement crew must, at a minimum, be a certified lead abatement worker under the supervision of at least one certified lead abatement supervisor.