(1) Review of permits on classified highway segments. Connection permit applications on controlled access facilities of the state highway system received on a particular segment that has been classified in accordance with this chapter shall be reviewed subject to the requirements of this chapter in compliance with the permit application process specified in chapter 468-51 WAC.

(2) Prior approvals. Connections permitted prior to the adoption of this chapter and unpermitted connections that do not require closure in accordance with WAC 468-51-030 are not required to meet the interim standards or the standards of assigned access classifications adopted in compliance with this chapter.

(3) New permits required by chapter 468-51 WAC. All new connection permits required due to significant changes in property site use in compliance with WAC 468-51-110, or permit modification in compliance with WAC 468-51-120 shall be reviewed subject to the requirements of this chapter.

(4) Permits approved under interim standards. Connection permits that were issued in accordance with the interim standards in WAC 468-52-040 on a highway segment where an access classification had not been adopted shall remain in effect after adoption of an access classification on that highway segment unless a new permit is required due to changes in property site use in compliance with WAC 468-51-110 or unless permit modification, revocation, or closure of the permitted connection is required in compliance with WAC 468-51-120.

(5) Nonconforming permits. Nonconforming permits may be issued in accordance with WAC 468-51-100 for certain connections not meeting the interim standards in WAC 468-52-040 or the access classification location and spacing standards adopted for a particular highway segment.

(6) Variance permits. Variance permits may be issued in accordance with WAC 468-51-105 for certain connections not meeting the access classification standards for location, spacing or exceed the number of connections allowed by the standards adopted for a particular highway segment. These permits may be allowed if conditions warrant and are demonstrated to the satisfaction of the department by a traffic analysis, signed and sealed by a qualified professional engineer who is registered in accordance with chapter 18.43 RCW, and included in the connection permit application, and will remain in effect unless a new permit is required due to changes in property site use in compliance with WAC 468-51-110 or unless permit modification, revocation, or closure of the permitted connection is required in compliance with WAC 468-51-120.