The National Radio Systems Committee (NRSC) is a joint committee composed of all interested parties including representatives of AM broadcast stations, AM receiver manufacturers, and broadcast equipment suppliers. This document describes an interim¹ voluntary national standard that specifies radio-frequency spectrum occupancy for AM broadcast stations. The standard applies to both AM monophonic and AM stereo transmissions. Compliance with the standard is strictly voluntary. To the NRSC's knowledge, no industry group or entity is or will be adversely affected by issuance of this document. Every effort has been made to inform and accommodate any and all interested parties. The NRSC believes that implementation of this standard will lead to reduced AM interference, thus providing increased service for all AM stations and an increase in quality of service to present and future AM listeners.

¹The standard is described as "interim" until the test methods contained within the document can be fully verified through field tests. In addition, field test data of "splatter monitor" technology will be evaluated to determine the correlation between results obtained with such devices and the methods described within this document (see§ 5,).