Cal. Code Regs. tit. 18, § 1593
(a) Definitions.
(3) “Component Part.” As used in subdivision (b)(2), the term “component part” means an item incorporated by securing to the aircraft in compliance with Federal Aviation Administration (FAA) requirements, or United States military equivalent, related to the maintenance, repair, overhaul, or improvement of the aircraft which part is essentially associated with the functional aspects of the aircraft, including those related to safety and air worthiness.
(b) Application of Tax.
(1) Aircraft. Tax does not apply to the sale of and the storage, use, or other consumption of aircraft sold, leased, or sold to persons for the purpose of leasing, to:
(A) a person who operates the aircraft as a common carrier of persons or property, provided:
(2) Aircraft Parts.
(C) The exemption described in subdivision (b)(2)(A) shall apply only under the following circumstances:
(c) Use of Aircraft.
(1) Common Carriers. In determining whether a purchaser or lessee of an aircraft is using that aircraft as a common carrier of persons or property, only that use of the aircraft by the carrier during the first 12 consecutive months commencing with the first operational use of the aircraft will be considered. This test period does not include, and is extended by, the amount of time, prior to the first use of the aircraft as a common carrier, during which the aircraft is in the physical possession of a repair station certified by the FAA or a manufacturer's maintenance facility undergoing modification, repair, or replacement. The period of this extension/exclusion shall not exceed 12 months. If the purchaser does not own the aircraft for 12 consecutive months commencing with the first operational use, as may be extended as provided herein, then only the period of time commencing with the first operational use that the purchaser owns the aircraft will be considered.
(C) A flight qualifies as a common carrier use of the aircraft for purposes of the exemption only if the flight is authorized or permitted by the governmental authority under which the aircraft is operated and involves the transportation of persons or property. Where the aircraft does not itself transport the person or property to a location on the ground (or water), the flight does not qualify as a common carrier flight for purposes of the exemption.
1. Following are examples of flights that do not qualify as common carrier use:
2. Following are examples of flights that do qualify as common carrier use when such services are offered indiscriminately to the public or to some portion of the public, provided the flights are authorized or permitted by the governmental authority under which the aircraft is operated:
(d) Activities Not Affecting Exemption.
(5) Nonrevenue Operations.
(e) Aircraft and Aircraft Parts Exemption Certificate. The law provides that for the purposes of the proper administration of the sales and use tax and to prevent the evasion of tax, it shall be presumed that all sales are subject to the tax until the contrary is established. This presumption may be rebutted by the seller as to any sale of aircraft or aircraft parts as defined in subdivision (a) by establishing to the satisfaction of the Board that the gross receipts or sales price from the sale are not subject to the tax or by taking an aircraft or aircraft parts exemption certificate substantially in the form set forth below. The certificate shall relieve the seller from liability for the sales tax or for use tax collection only if it is taken timely and in good faith.
For special provisions affecting aircraft, see Regulation 1610 (18 CCR 1610), “Vehicles, Vessels and Aircraft”.
AIRCRAFT OR AIRCRAFT PARTS EXEMPTION CERTIFICATE
I HEREBY CERTIFY: That the aircraft identified below will be used
[ ] Principally as a common carrier* of persons or property under authority of the laws of California, of the United States, or of any foreign government; or
[ ] Outside California by a foreign government; or
[ ] Outside California by a nonresident of California which aircraft was not used in this state other than the removal from California.
That the purchase of all tangible personal property which I shall purchase from
is exempt from tax under section 6366 or 6366.1 of the Revenue and Taxation Code and Regulation 1593. The identification numbers of all aircraft purchased under this certificate are listed below. Until this certificate is revoked in writing, all other property purchased from the seller consists of tangible personal property to become a component part of aircraft in the course of repair, maintenance, overhaul, or improvement of same in compliance with Federal Aviation Administration requirements, or United States military equivalent, which aircraft will be used by the purchaser or the purchaser's lessee in a manner qualifying for exemption under section 6366 or 6366.1 and under Regulation 1593. (The purchaser issuing this certificate can revoke it as to a particular purchase by clearly indicating on a purchase order than the purchase is not exempt under either section 6366 or 6366.1 or under Regulation 1593.)
I UNDERSTAND that in the event any such property is used in any manner other than as specified above, I am required by the Sales and Use Tax Law to report and pay any applicable sales or use tax.
*NOTE: Revenue and Taxation Code section 6366 creates a rebuttable presumption that an aircraft is not principally used as a common carrier if the owner's or lessor's annual gross receipts from such operations do not exceed 20 percent of the purchase price of the aircraft or fifty thousand dollars ($50,000), whichever is less. Amounts received for use of the aircraft as a common carrier from the owner or lessor of the aircraft or related parties or employees of the owner or lessor, are excluded from gross receipts for purposes of this presumption.
Identification Numbers of Aircraft Purchased under this Certificate:
Date Certificate Given ______________________________
Purchaser
(Company Name)
Address
Signature
(Signature of Authorized Persons)
(Print or Type Name)
Title
(Owner, Partner, Purchasing Agent, etc.)
Seller's Permit No. (if any) ______________________________
Note: Authority cited: Section 7051, Revenue and Taxation Code. Reference: Sections 6091, 6366, 6336.1 and 6421, Revenue and Taxation Code.
1. Amendment and renumbering of former Section 1986 filed 11-5-69; effective thirtieth day thereafter (Register 69, No. 45).
2. Amendment filed 10-19-78; effective thirtieth day thereafter (Register 78, No. 42).
3. Amendment of subsections (a), (b) and (h) filed 6-1-88; operative 7-1-88 (Register 88, No. 23).
4. Amendment of section and Note filed 9-17-98; operative 10-17-98 (Register 98, No. 38).