49 U.S.C. § 13506(a)(6) provides an exemption from regulation for motor vehicles used in carrying ordinary livestock, fish, and unmanufactured agricultural commodities. Certain specific commodities have been statutorily determined to be non-exempt. Administrative Ruling No. 133, which is reproduced below, is a list of those commodities that are non-exempt by statute.

Administrative Ruling No. 133List of Commodities That Are Not Exempt by Statute Under 49 U.S.C. § 13506(a)(6)Animal fatsButterCanned fruits and vegetablesCarnauba wax as imported in slabs or chunksCattle, slaughteredCharcoalCheeseCoalCocoa beansCoffee, beans, roasted, or instantCopra mealCotton yarnCottonseed cake or mealDiatomaceous earthDinners, frozenFeeds:Alfalfa mealAlfalfa pelletsBeet pulpBran shortsCopra mealCorn glutenDistilled corn grain residues, with or without solubles addedFish mealHominy feedMiddlingsPelletized ground refuse screeningsWheat branWheat shortsFertilizer, commercialFish:Canned or salted as a treatment for preservingCooked or partially cooked fish or shrimp, frozen or unfrozenHermetically sealed in containers as a treatment for preservingOil from fishesPreserved, or treated for preserving, such as smoked, salted, pickled, spiced, corned or kipperedFlagstoneFlaxseed mealFlourForest products:Resin products, such as turpentineFruits and Berries:Bananas, fresh, dried, dehydrated, or frozenCannedFrozenHulls of oranges after juice extractionsJuice, fruit, plain or concentratedPies, frozenPreserved, such as jamPurees, strawberry and other, frozenGrains:Oils extracted from grainPopcorn, poppedRice, precookedWheat germGravelHair, hog or other animal, product of slaughter of animalHay, sweetened with 3 percent molasses by weightHemp fiberHides, green and saltedInsecticidesLimestone, agriculturalLivestock:MonkeysRace horsesShow horsesZoo animalsLumber, rough sawed or planedMaple syrupMeal:AlfalfaCopraCottonseedFishFlaxseedLinseedPeanutSoybeanMeat and meat products, fresh, frozen or cannedMilk and Cream:ChocolateCondensedSterilized in hermetically sealed cansMolassesNuts (including peanuts):Peanut mealRoasted or boiledOil, mintOil, extracted from vegetables, grain, seed, fish or other commodityPeltsPies, frozenPigeons, racingPulp, beetPulp, sugar caneRock (except natural crushed, vesicular rock to be used for decorative purposes)Rubber, crude, in balesRubber, latex, natural, liquid, from which water has been extracted and to which ammonia has been addedSandSeeds:Oil extracted from seedsSkins, animalSoil, pottingSoil, topSoup, frozenSugarSugar cane pulpSugar rawSyrup, caneSyrup, mapleTeaTobacco:Cigars and cigarettesHomogenizedSmokingTop SoilTrees:Sawed into lumberVegetables:Candied sweet potatoes, frozenCannedCookedFrench fried potatoesOil, extracted from vegetablesSoup, frozenSoybean mealWool imported from a foreign countryWool tops and noilsWool waste (carded, spun, woven, or knitted)Wool yarnNote 1:

Under 49 U.S.C. § 13506(a)(6)(D), any listed fish or shellfish product that is not intended for human consumption is exempt.

Note 2:

Under 49 U.S.C. § 13506(a)(6)(E), any listed livestock feed, poultry feed, agricultural seeds, or plants that are transported to a site of agricultural production or to a business enterprise engaged in the sale to agricultural producers of goods used in agricultural production is exempt

[53 FR 17707, May 18, 1988, as amended at 62 FR 15421, Apr. 1, 1997]