AIM 5-4-25

Pilots operating in accordance with an IFR flight plan, provided they are clear of clouds and have at least 1 mile flight visibility and can reasonably expect to continue to the destination airport in those conditions, may request ATC authorization for a contact approach.

Controllers may authorize a contact approach provided: The contact approach is specifically requested by the pilot. ATC cannot initiate this approach. EXAMPLE-

Request contact approach.

The reported ground visibility at the destination airport is at least 1 statute mile.

The contact approach will be made to an airport having a standard or special instrument approach procedure.

Approved separation is applied between aircraft so cleared and between these aircraft and other IFR or special VFR aircraft. EXAMPLE-

Cleared contact approach (and, if required) at or below (altitude) (routing) if not possible (alternative procedures) and advise.

A contact approach is an approach procedure that may be used by a pilot (with prior authorization from ATC) in lieu of conducting a standard or special IAP to an airport. It is not intended for use by a pilot on an IFR flight clearance to operate to an airport not having a published and functioning IAP. Nor is it intended for an aircraft to conduct an instrument approach to one airport and then, when “in the clear,” discontinue that approach and proceed to another airport. In the execution of a contact approach, the pilot assumes the responsibility for obstruction clearance. If radar service is being received, it will automatically terminate when the pilot is instructed to change to advisory frequency.