http://uscode.house.gov/download/pls/15C29.txtit defines Switchblades as follows:
Sec. 1241. Definitions
-STATUTE-
As used in this chapter -
(a) The term "interstate commerce" means commerce between any
State, Territory, possession of the United States, or the District
of Columbia, and any place outside thereof.
(b) The term "switchblade knife" means any knife having a blade
which opens automatically -
(1) by hand pressure applied to a button or other device in the
handle of the knife, or
(2) by operation of inertia, gravity, or bothThus, any federal agency can use its regulatory power to further define the above, but it can not redefine what is defined by the above.
Thus we have the following regulations"
TITLE 19 - CUSTOMS DUTIES
CHAPTER I - BUREAU OF CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY
PART 12 - SPECIAL CLASSES OF MERCHANDISE
12.95 - Definitions.
Terms as used in 12.96 through 12.103 of this part are defined as follows: (a) Switchblade knife. Switchblade knife means any imported knife, or components thereof, or any class of imported knife, including switchblade, Balisong, butterfly, gravity or ballistic knives, which has one or more of the following characteristics or identities: (1) A blade which opens automatically by hand pressure applied to a button or device in the handle of the knife, or any knife with a blade which opens automatically by operation of inertia, gravity, or both; (2) Knives which, by insignificant preliminary preparation, as described in paragraph (b) of this section, can be altered or converted so as to open automatically by hand pressure applied to a button or device in the handle of the knife or by operation of inertia, gravity, or both; (3) Unassembled knife kits or knife handles without blades which, when fully assembled with added blades, springs, or other parts, are knives which open automatically by hand pressure applied to a button or device in the handle of the knife or by operation of inertia, gravity, or both; or (4) Knives with a detachable blade that is propelled by a spring-operated mechanism, and components thereof.
(b) Insignificant preliminary preparation. Insignificant preliminary preparation means preparation with the use of ordinarily available tools, instruments, devices, and materials by one having no special manual training or skill for the purpose of modifying blade heels, relieving binding parts, altering spring restraints, or making similar minor alterations which can be accomplished in a relatively short period of time.
(c) Utilitarian use. Utilitarian use includes but is not necessarily limited to use: (1) For a customary household purpose; (2) For usual personal convenience, including grooming; (3) In the practice of a profession, trade, or commercial or employment activity; (4) In the performance of a craft or hobby; (5) In the course of such outdoor pursuits as hunting and fishing; and (6) In scouting activities.
http://cfr.vlex.com/vid/12-95-definitions-19649112Now what the agency wants to do is withdraw the following Letter rulings, Ruling the agency have made in the past and now the agency wants to withdraw as no longer valid under the above Statute and Regulations. These are rulings HQ 116315, HQ W116730, HQ H016666, and HQ H032255.
Letter ruling HQ 1161315 overruled Letter Ruling 116219 (dated 2004). Ruling 1161315 ruled that a Fishars knife similar to Fishars already imported "E-Z-Out, Gator and L.S.T. knives" was also NOT a switchblade since it was very similar to the above three knives, none of which is a Switchblade.
Letter Ruling HQ W 116730 from 2006 that ruled that the "Outburst" mechanisms as imported by Columbia River Knife and Tool, even through it was a spring added opening was NOT a switchblade. This permitted the importation of the Koji Hara Ichi, My Tighe and Kommer Full Throttle knives into the US. Please note these were also viewed as similar to the Knives ruled Legal in HQ 1161315 above.
Letter Ruling HQ H016666 (dated 2007) covers to "Tailwind" (model number HD0071) imported by "National Commodity Specialist Division, New York" and it was another knife which used a spring to assist in opening the knife but could NOT open the knife by itself.
Letter Ruling HQ H032255 (dated 2008) involves the "VanHoy Assist" which used "thumb pressure" to assist in opening the knife. This is another spring assisted opening knife which the Letter ruling permitted to be imported.
Now in letter Ruling HQ H043122, the Agency wants to "revoke" the above private letter rulings based on the Anti-Switchblade Act. In this ruling the Agency noted that the use of the term "Utility Knife" is just a regulatory addition NOT in the Statute, thus it can NOT be used to over rule or minimized the ban clearly stated in the Anti Switchblade act. Furthermore given that a spring is what actually open the above knives and with the help of "inertia, gravity, or both" can be completely open by one hand with the use of the thumb button. Thus the agency wants to rule that the above Letter Rulings are invalid and no one should rely on them in the future.
Simply stated, if a spring is used to open a knife, even if only assists in opening the knife it is still a switchblade under the Anti Switch Blade act.