A specific entity shall be identified to insure that the ACF is updated and maintained in a timely manner. Following spatial or attribute updates and/or modifications performed to the ACF shall be submitted to the entity responsible for performing quality control practices.

Rigorous quality control techniques shall be implemented to insure the ACF has an acceptable horizontal accuracy and attribute integrity is maintained.

The National Standard for Spatial Data Accuracy (NSSDA)- part 3 shall be used to perform horizontal accuracy assessments on the ACF in several geographically dispersed areas. Centerline files created utilizing heads-up digitizing and GNSS techniques shall be tested, utilizing NSSDA- part 3 techniques in various locations.

Digital ortho-rectified photography may also be used to perform horizontal accuracy assessments in a more efficient and economical manner. This will enable the testing of larger portions of the spatial data theme.

Note: The horizontal accuracy of the digital ortho-rectified photography must be determined prior to utilizing it as a verification of the horizontal accuracy of the ACF.

Centerline files intended for incorporation into the ACF program shall have Federal Geographic Data Committee (FGDC) compliant metadata created for each spatial data file. Compliant metadata shall be provided with centerline files that are created, updated, or distributed by any parties participating in the ACF program. The metadata shall be supplied with the ACF anytime it is distributed and/or transferred among participants or other entities responsible for creating, performing quality control on, maintaining, updating, and/or distributing the ACF. The metadata shall be transferred in a FGDC standard format (i.e.- Z39.5, text or HTML file) and must have successfully passed through a FGDC compliant metadata parser.

Those participating in the ACF program shall follow the spatial, attribute, and metadata standards set forth in this document.

Centerline files created prior to the ACF program may be contributed to the program if FGDC compliant metadata is supplied. If the data is not in compliance with this standard, ACF program participants may standardize the centerline file and/or its attributes and incorporate the centerline file into the ACF program.

The ACF shall be distributed digitally via gis.arkansas.gov (Arkansas' Spatial Data Warehouse) at no cost to private or public users.