If you request FF you are now in the system. Pretty much have to follow ATC instructions; cancelling FF is generally not a get out of jail free card since you opted in in the first place. Once VFR altitude AND course are your discretion (“maintain VFR”) then you can cancel FF if ATC engagement is not required for the airspace presently in.
Not all instructions. This discussion has focused on assigning altitudes to VFR aircraft. FAA Order 7110.65 does not address that directly for areas where Class B, Class C, or TRSA services are not provided, but it does with regard to vectoring.
5−6−1. APPLICATION
Vector aircraft:
a. In controlled airspace for separation, safety, noise abatement, operational advantage, confidence maneuver,
or when a pilot requests.
b. In Class G airspace only upon pilot request and as an additional service.
c. At or above the MVA or the minimum IFR altitude except as authorized for radar approaches, radar
departures, special VFR, VFR operations, or by paragraph 5−6−3, Vectors Below Minimum Altitude.
NOTE−
VFR aircraft not at an altitude assigned by ATC may be vectored at any altitude. It is the responsibility of the pilot to comply
with the applicable parts of CFR Title 14.
REFERENCE−
FAA Order JO 7110.65, Para 4−5−6, Minimum En Route Altitudes.
FAA Order JO 7110.65, Para 7−5−2, Priority.
FAA Order JO 7110.65, Para 7−5−4, Altitude Assignment.
FAA Order JO 7110.65, Para 7−7−5, Altitude Assignments.
14 CFR Section 91.119, Minimum Safe Altitudes: General.
d. In airspace for which you have control jurisdiction, unless otherwise coordinated.
e. So as to permit it to resume its own navigation within radar coverage.
f. Operating special VFR only within Class B, Class C, Class D, or Class E surface areas.
g. Operating VFR at those locations where a special program is established, or when a pilot requests, or you
suggest and the pilot concurs.
REFERENCE−
FAA Order JO 7110.65, Para 4−4−1, Route Use.
FAA Order JO 7110.65, Para 7−2−1, Visual Separation.
FAA Order JO 7110.65, Para 7−5−3, Separation.
FAA Order JO 7110.65, Para 7−6−1, Application.
FAA Order JO 7110.65, Para 9−4−4, Separation Minima.
FAA Order JO 7210.3, Chapter 12, Section 1, Terminal VFR Radar Services.
7−6−1. APPLICATION
a. Basic radar services for VFR aircraft must include:
1. Safety alerts.
2. Traffic advisories.
3. Limited radar vectoring when requested by the pilot.
4. Sequencing at locations where procedures have been established for this purpose and/or when covered
by a LOA.
b. Apply the procedures contained in paragraph 7−1−3, Approach Control Service for VFR Arriving Aircraft,
when arriving VFR aircraft are handled by approach control and provide vectoring service in accordance with
Chapter 5, Radar, Section 7, Speed Adjustment, in addition to the radar services prescribed in paragraph 5−6−1,
Application, and paragraph 5−6−2, Methods.
REFERENCE−
FAA Order JO 7110.65, Para 2−1−16, Surface Areas.
FAA Order JO 7110.65, Para 7−6−1, Application.
FAA Order JO 7210.3, Chapter 12, Section 1, Terminal VFR Radar Services.
AIM, Para 4−1−18, Terminal Radar Services for VFR Aircraft.