Boning occupations means the removal of bones from meat cuts. It does not include work that involves cutting, scraping, or trimming meat from cuts containing bones.
Curing cellar includes a workroom or workplace which is primarily devoted to the preservation and flavoring of meat, including poultry, by curing materials. It does not include a workroom or workplace solely where meats are smoked.
Hide cellar includes a workroom or workplace where hides are graded, trimmed, salted, and otherwise cured.
Killing floor includes a workroom, workplace where such animals as cattle, calves, hogs, poultry, sheep, lambs, goats, buffalo, deer, or horses are immobilized, shackled, or killed, and the carcasses are dressed prior to chilling.
Retail/wholesale or service establishments include establishments where meat or meat products, including poultry, are processed or handled, such as butcher shops, grocery stores, restaurants and quick service food establishments, hotels, delicatessens, and meat locker (freezer-locker) companies, and establishments where any food product is prepared or processed for serving to customers using machines prohibited by paragraph (a) of this section.
Rendering plants means establishments engaged in the conversion of dead animals, animal offal, animal fats, scrap meats, blood, and bones into stock feeds, tallow, inedible greases, fertilizer ingredients, and similar products.
Slaughtering and meat packing establishments means places in or about which such animals as cattle, calves, hogs, poultry, sheep, lambs, goats, buffalo, deer, or horses are killed, butchered, or processed. The term also includes establishments which manufacture or process meat or poultry products, including sausage or sausage casings from such animals.
29 C.F.R. §570.61