Section 5-306 - Population projections(a) The Department shall prepare population projections for the State and for each county and municipal corporation in the State.(b) The population projections shall include details of age, sex, and race.(c) The Department shall prepare the population projections for periods of 20 years, in 5-year intervals beginning with 1990.(d) Beginning in 1991, the Department shall revise the population projections at least every 3 years.(e) In preparing the population projections for the Washington metropolitan area, the Department may use the population figures developed by the Maryland-National Capital Park and Planning Commission.