 <translate> Q: Passage: Under the National Firearms Act (NFA), it is illegal for a private citizen to possess a sawed-off modern smokeless powder shotgun (a shotgun with a barrel length shorter than 18 inches ( 46 cm) or an overall length shorter than 26 inches (66 cm) ) (under U.S.C. Title II), without a tax-paid registration from the Bureau of Alcohol, Tobacco, Firearms and Explosives, requiring a background check and either a $200 or $5 tax for every transfer, depending upon the specific manufacturing circumstances of the particular sawed-off modern shotgun being transferred. Gun trusts have become an increasingly popular means of registering SBS' with the BATFE. Short-barreled muzzleloading blackpowder shotguns, in contrast, are not illegal by federal law and require no tax-stamped permit, although they may be illegal under state law. As with all NFA regulated firearms, a new tax stamp must be purchased before every transfer. Inter-state transfers must be facilitated through a Federal Firearms Licensee (FFL) while intrastate transfers may be between two persons.

Question: Based on this passage, what is the shortest legal length of a shotgun barrel? Let's give stream of consciousness first: <yor> Q: Passage: Ní abẹ́ òfin NFA, ó lòdì sí òfin fún aráàlú láti ní ìbọn ògbólógbòó tí kò ní èéfín tí wọ́n fi abẹ́lẹ̀ ṣe (abẹ́lẹ̀ tí òrùka rẹ̀ kò gùn ju ìsẹ́jú mẹ́rìndínlọ́gọ́rin (46 cm) tàbí tí gígùn rẹ̀ kò gùn ju ìsẹ́jú mẹ́rìndínlọ́gọ́rin (66 cm) lọ) (lábẹ́ òfin U.S.C. Title II), láìsí ìwé ìforúkọsílẹ̀ tí wọ́n san owó-ori fún láti ọ́fíìsì tó ń rí sí ọ̀ràn ọtí, sìgá, ìbọn àti àwọn ohun amúgbọrọ̀, èyí tó ń béèrè ìwádìí ìpilẹ̀ṣẹ̀ àti owó-ori $200 tàbí $5 fún gbogbo ìdásílẹ̀ kan, èyí tí ó sinmi lórí ipò ìṣẹ̀dá abẹ́lẹ̀ tí wọ́n fi abẹ́lẹ̀ ṣe ìbọn ògbólógbòó tí wọ́n fi abẹ́lẹ̀ ṣe tí wọ́ Awọn igbẹkẹle ibọn ti di ọna ti o gbajumọ nigbagbogbo lati forukọsilẹ SBS' pẹlu BATFE. Ní ìyàtọ̀ sí èyí, àwọn ìbọn àgbéléjìká tí wọ́n ń fi òdòdó dúdú ṣe, tí wọ́n ní ọ̀pá gígùn, kì í ṣe ohun tí kò bófin mu ní ìbámu pẹ̀lú òfin ìjọba àpapọ̀, bẹ́ẹ̀ ni wọn kì í sì í nílò ìwé àṣẹ tí wọ́n fi òǹtè owó orí sí, bí ó tilẹ̀ jẹ́ pé ó lè jẹ́ ohun tí kò bófin mu ní ìbámu pẹ̀lú òfin ìpínlẹ̀. Gẹgẹ bi gbogbo awọn ohun ija ti NFA ṣe ilana, a gbọdọ ra aami owo-ori tuntun ṣaaju gbigbe kọọkan. Awọn gbigbe ti o wa laarin ipinlẹ gbọdọ jẹ irọrun nipasẹ iwe-aṣẹ Firearms Federal (FFL) lakoko ti awọn gbigbe inu ipinlẹ le jẹ laarin awọn eniyan meji.  Ìbéèrè: Níbàámu pẹ̀lú ohun tó wà nínú ẹsẹ Bíbélì yìí, kí ni gígùn tó kéré jù lọ tí wọ́n gbà láyè fún ọta ìbọn? Ẹ jẹ́ ká kọ́kọ́ sọ̀rọ̀ nípa ìmọ̀lára: 