NET REACH
Net reach refers to the total number of persons within the target audience exposed to the advertising schedule, often expressed as a percentage.

Nielsen Monitor-Plus®
Uses advanced data collection technology and information delivery systems to gather, manage, store and distribute information on millions of advertisement from 15 different media. The Monitor-Plus data base, which includes cost estimates, provides customers a comprehensive view of the reach and cost-effectiveness of advertising, as well as a means to evaluate the advertising strategy of key competitors.

NON-CONFORMING SIGN
A billboard which was legally erected but does not comply with subsequently enacted sign restrictions. Legal non-conforming signs re just compensation for oval under the Highway Beautification Act.

Number of Units
The total number of units in a contracted outdoor advertising program. Also reflected by the GRP or TRP level of a program.