Officers in this status are considered by the board to be in-zone. Officers may review ref (b) and their eligibility for the board on the internet at the officer promotion homepage. The senior and junior officers in-zone and the junior officer eligible below-zone are as follows (Encl (2) of ref. (b) applies): 2.a.
duplex - a house with two units sharing a common wall. duplex house, semidetached house. house - a dwelling that serves as living quarters for one or more families; he has a house on Cape Cod; she felt she had to get out of the house. duplex apartment. apartment, flat - a suite of rooms usually on one floor of an apartment house.
duplex house. 1. a house having separate apartments for two families, especially a two-story house having a complete apartment on each floor and two separate entrances. Also called duplex.