The definitions in this section apply throughout this chapter unless the context clearly requires otherwise.

(1) "Metadata" means data that describes other data. For the purposes of this chapter, metadata means geodetic reference system utilized, applicable epoch, statement of relative accuracy, and date of observation at a minimum. Additional metadata is encouraged if it adds value.

(2) "NGS" means the national ocean service's national geodetic survey of the national oceanic and atmospheric administration, United States department of commerce, or its successor.

(3) "NSRS" means the national spatial reference system or its successor.

(4) "WPCS" means the Washington plane coordinate system, the system of plane coordinates under this chapter that is identical to the state plane coordinate system as defined for the state of Washington by NGS.