Regulations last checked for updates: May 16, 2024

Title 29 - Labor last revised: Apr 30, 2024
Appendix Appendix A - Appendix A to Part 510—Manufacturing Industries Eligible for Minimum Wage Phase-In

This appendix contains a listing of all manufacturing industries for which data were collected and compiled by the Commonwealth of Puerto Rico for purposes of implementing the 1989 Amendments to FLSA. This listing follows the order and classifications used in the SIC Manual, 1987, which is incorporated by reference in these regulations (§ 510.21).

The data in this appendix are presented by major industry group (two-digit classification), industry group number (three-digit classification), and industry number (four-digit classification). Tiers will not be listed for industry categories in which there were fewer than three employers, in conformance with standard procedures used by the Commonwealth of Puerto Rico in collecting and publishing these data until such time as Puerto Rico receives appropriate waivers of confidentiality from all employers in such categories. These categories are noted with an “a” on the following table. In addition, no tier will be listed where an industry was not included in the original survey, because it was not in existence, because the industry was too small to be included, or for other reasons.

Employers who do not find the four-digit classification for their industry shall refer to the appropriate three-digit classification under which their establishment falls. If the appropriate three-digit classification is not listed, employers shall refer to the appropriate two-digit classification. For example, no tier is listed for industry number 2034, dried and dehydrated fruits, vegetables, and soup mixes. Thus, an employer in industry 2034 must use the tier listed for industry group 203, i.e. Tier 2.

Further, employers who find the appropriate four-digit designation in this appendix must use that designation and cannot refer to a two- or three-digit classification. For example, an employer in industry number 2033, canned fruits, vegetables, preserves, jams, and jellies, which has a Tier 1 designation, cannot use the Tier 2 designation of industry group 203, canned, frozen, and preserved fruits, vegetables, and food specialties.

If no four-digit, three-digit, or two-digit classification is listed for an industry, employees in that group must pay the Tier 1 rates.

Important: In referring to this appendix to determine appropriate tier designations, please note that certain categories of employees are subject to treatment under Tier 1 regardless of the average hourly wage rate for the industry and the tier designation contained herein. These employees, as listed in the 1989 Amendments, are those employed by:

(a) The United States

(b) An establishment that is a hotel, motel, or restaurant, or

(c) Any other retail or service establishment that employs such employee in connection with the preparation or offering of food or beverages for human consumption, either on the premises, or by such services as catering, banquet, box lunch, or curb or counter service, to the public, to employees, or to members or guests of clubs.

Please note that these named categories may not correspond exactly to categories established by the SIC manual.

Manufacturing Industries

Major group Industry group number Industry number Tier Industry
201Food and kindred products.
2012Meat products.
20112Meat packing plants.
20131Sausages and other prepared meat products.
20152Poultry slaughtering and processing.
2021Dairy products.
2022aNatural, processed, and imitation cheese.
20231Dry, condensed, and evaporated dairy products.
20241Ice cream and frozen desserts.
20261Fluid milk.
2032Canned, frozen, and preserved fruits, vegetables, and food specialties.
2032aCanned specialties.
20331Canned fruits, vegetables, preserves, jams, and jellies.
20353Pickled fruits and vegetables, vegetable sauces and seasonings, and salad dressings.
20372Frozen fruits, fruit juices, and vegetables.
20383Frozen specialties, not elsewhere classified.
2041Grain mill products.
2041aFlour and other grain mill products.
2043aCereal breakfast foods.
20441Rice milling.
20451Prepared flour mixes and doughs.
20461Wet corn milling.
20481Prepared feeds and feed ingredients for animals and fowls, except dogs and cats.
2051Bakery products.
20511Bread and other bakery products, except cookies and crackers.
20521Cookies and crackers.
2053aFrozen bakery products, except bread.
2061Sugar and confectionery products.
20611Cane sugar, except refining.
2062aCane sugar refining.
20641Candy and other confectionery products.
20663Chocolate and cocoa products.
2067aChewing gum.
2081Beverages.
20821Malt beverages.
20843Wines, brandy, and brandy spirits.
20851Distilled and blended liquors.
20861Bottled and canned soft drinks and carbonated waters.
20871Flavoring extracts and flavoring syrups, not elsewhere classified.
2091Miscellaneous food preparations and kindred products.
20911Canned and cured fish and seafoods.
20952Roasted coffee.
20961Potato chips, corn chips, and similar snacks.
20973Manufactured ice.
2098aMacaroni, spaghetti, vermicelli, and noodles.
20992Food preparations, not elsewhere classified.
211Tobacco products.
211aCigarettes.
2111aCigarettes.
2121Cigars.
21211Cigars.
2131Chewing and smoking tobacco and snuff.
21311Chewing and smoking tobacco and snuff.
214aTobacco stemming and redrying.
2141aTobacco stemming and redrying.
221Textile mill products.
2211Broadwoven fabric mills, cotton.
22111Broadwoven fabric mills, cotton.
2241Narrow fabric and other smallwares mills: cotton, wool, silk, and manmade fiber.
22411Narrow fabric and other smallwares mills: cotton, wool, silk, and manmade fiber.
2252Knitting mills.
22511Women's full-length and knee-length hosiery, except socks.
22532Knit outerwear mills.
22543Knit underwear and nightwear mills.
2261Dyeing and finishing textiles, except wool fabrics and knit goods.
22613Finishers of broadwoven fabrics of cotton.
22621Finishers of broadwoven fabrics of manmade fiber and silk.
2271Carpets and rugs.
22731Carpets and rugs.
2283Yarn and thread mills.
22813Yarn spinning mills.
232Apparel and other finished products made from fabrics and similar materials.
2313Men's and boys' suits, coats, and overcoats.
23113Men's and boys' suits, coats, and overcoats.
2322Men's and boys' furnishings, work clothing, and allied garments.
23212Men's and boys' shirts except work shirts.
23221Men's and boys' underwear and nightwear.
23232Men's and boys' neckwear.
23252Men's and boys' separate trousers and slacks.
23263Men's and boys' work clothing.
23293Men's and boys' clothing, not elsewhere classified.
2333Women's, misses', and juniors' outerwear.
23313Women's, misses', and juniors' blouses and shirts.
23353Women's, misses', and juniors dresses.
23373Women's, misses, and juniors' suits, skirts, and coats.
23392Women's, misses', and juniors' outerwear, not elsewhere classified.
2342Women's, misses', children's, and infants' undergarments.
23412Women's, misses', children's, and infants' underwear and nightwear.
23422Brassieres, girdles, and allied garments.
2353Hats, caps, and millinery
23533Hats, caps, and millinery
2363Girls', children's, and infants' outerwear.
23613Girls', children's, and infants' dresses, blouses, and shirts.
23693Girls', children's, and infants' outerwear, not elsewhere classified.
2383Miscellaneous apparel and accessories.
23853Waterproof outerwear.
23873Apparel belts.
23893Apparel and accessories, not elsewhere classified.
2393Miscellaneous fabricated textile products.
23912Curtains and draperies.
23923Housefurnishings, except curtains and draperies.
23933Textile bags.
23952Pleating, decorative and novelty stitching, and tucking for the trade.
23962Automotive trimmings, apparel findings, and related products.
23993Fabricated textile products, not elsewhere classified.
242Lumber and wood products, except furniture.
2423Sawmills and planing mills.
24213Sawmills and planing mills, general.
2432Millwork, veneer, plywood, and structural wood members.
24312Millwork.
24342Wood kitchen cabinets.
2435aHardwood veneer and plywood.
2443Wood containers.
24483Wood pallets and skids.
2453Wood buildings and mobile homes.
24513Mobile homes.
2492Miscellaneous wood products.
24912Wood preserving.
24992Wood products, not elsewhere classified.
252Furniture and fixtures.
2513Household furniture.
25113Wood household furniture, except upholstered.
25123Wood household furniture, upholstered.
25143Metal household furniture.
25152Mattresses, foundations, and convertible beds.
25173Wood television, radio, phonograph, and sewing machine cabinets.
25193Household furniture, not elsewhere classified.
2522Office furniture.
2521aWood office furniture.
25222Office furniture, except wood.
2533Public building and related furniture.
25313Public building and related furniture.
2541Partitions, shelving, lockers, and office and store fixtures.
25412Wood office and store fixtures, partitions, shelving, and lockers.
25421Office and store fixtures, partitions, shelving, and lockers, except wood.
2592Miscellaneous furniture and fixtures.
25913Drapery hardware and window blinds and shades.
2599aFurniture and fixtures, not elsewhere classified.
261Paper and allied products.
2611Pulp mills.
26111Pulp mills.
2622Paper mills.
26212Paper mills.
263aPaperboard mills.
2631aPaperboard mills.
2651Paperboard containers and boxes.
26521Setup paperboard boxes.
26531Corrugated and solid fiber boxes.
26551Fiber cans, tubes, drums, and similar products.
26571Folding paperboard boxes, including sanitary.
2671Converted paper and paperboard products, except containers and boxes.
26712Packaging paper and plastics film, coated and laminated.
2672aCoated and laminated paper, not elsewhere classified.
26732Plastics, foil, and coated paper bags.
26741Uncoated paper and multiwall bags.
26761Sanitary paper products.
26771Envelopes.
26783Stationery, tablets, and related products.
2679aConverted paper and paperboard products, not elsewhere classified.
271Printing, publishing, and allied industries.
2711Newspapers: publishing, or publishing and printing.
27111Newspapers: publishing, or publishing and printing.
273aBooks.
2731aBooks: publishing, or publishing and printing.
27323Book printing.
2741Miscellaneous publishing.
27411Miscellaneous publishing.
2751Commercial printing.
27521Commercial printing, lithographic.
27541Commercial printing, gravure.
27591Commercial printing, not elsewhere classified.
2761Manifold business forms.
27611Manifold business forms.
2781Blankbooks, looseleaf binders, and bookbinding and related work.
27821Blankbooks, looseleaf binders and devices.
2791Service industries for the printing trade.
27961Platemaking and related services.
281Chemicals and allied products.
2811Industrial inorganic chemicals.
28131Industrial gases.
28191Industrial inorganic chemicals, not elsewhere classified.
2821Plastics materials and synthetic resins, synthetic rubber, cellulosic and other manmade fibers, except glass.
2821aPlastics materials, synthetic resins, and nonvulcanizable elastomers.
28222Synthetic rubber (vulcanizable elastomers).
2831Drugs.
28331Medicinal chemicals and botanical products.
28341Pharmaceutical preparations.
28351In vitro and in vivo diagnostic substances.
28361Biological products, except diagnostic substances.
2841Soap, detergents, and cleaning preparations; perfumes, cosmetics, and other toilet preparations.
28411Soap and other detergents, except specialty cleaners.
28421Specialty cleaning, polishing, and sanitation preparations.
28441Perfumes, cosmetics, and other toilet preparations.
2851Paints, varnishes, lacquers, enamels, and allied products.
28511Paints, varnishes, lacquers, enamels, and allied products.
2861Industrial organic chemicals.
28651Cyclic organic crudes and intermediates, and organic dyes and pigments.
2869aIndustrial organic chemicals, not elsewhere classified.
2871Agricultural chemicals.
28731Nitrogenous fertilizers.
28791Pesticides and agricultural chemicals, not elsewhere classified.
2891Miscellaneous chemical products.
28911Adhesives and sealants.
28991Chemicals and chemical preparations, not elsewhere classified.
291Petroleum refining and related industries.
2911Petroleum refining.
29111Petroleum refining.
2951Asphalt paving and roofing materials.
29511Asphalt paving mixtures and blocks.
29521Asphalt felts and coatings.
299aMiscellaneous products of petroleum and coal.
2992aLubricating oils and greases.
301Rubber and miscellaneous plastics products.
3021Rubber and plastics footwear.
30211Rubber and plastics footwear.
3052Gaskets, packing, and sealing devices and rubber and plastics hose and belting.
30522Rubber and plastics hose and belting.
3062Fabricated rubber products, not elsewhere classified.
30692Fabricated rubber products, not elsewhere classified.
3081Miscellaneous plastics products.
3081aUnsupported plastics film and sheet.
30823Unsupported plastics profile shapes.
30831Laminated plastics plate, sheet, and profile shapes.
3084aPlastics pipe.
30851Plastics bottles.
30862Plastics foam products.
30873Custom compounding of purchased plastics resin.
30881Plastics plumbing fixtures.
30891Plastics products, not elsewhere classified.
312Leather and leather products.
3132Boot and shoe cut stock and findings.
31312Boot and shoe cut stock and findings.
3142Footwear, except rubber.
3142bHouse slippers.
31432Men's footwear, except athletic.
31441Women's footwear, except athletic.
31492Footwear, except rubber, not elsewhere classified.
3153Leather gloves and mittens.
31513Leather gloves and mittens.
3163Luggage.
31613Luggage.
3172Handbags and other personal leather goods.
31713Women's handbags and purses.
31721Personal leather goods, except women's handbags and purses.
321Stone, clay, glass, and concrete products.
3212Flat glass.
32112Flat glass.
3221Glass and glassware, pressed or blown.
32211Glass containers.
3231Glass products, made of purchased glass.
32311Glass products, made of purchased glass.
3241Cement, hydraulic.
32411Cement, hydraulic.
3263Pottery and related products.
32613Vitreous china plumbing fixtures and china and earthenware fittings and bathroom accessories.
32693Pottery products, not elsewhere classified.
3271Concrete, gypsum, and plaster products.
32712Concrete block and brick.
32721Concrete products, except block and brick.
32731Ready-mixed concrete.
32741Lime.
3275aGypsum products.
3281Cut stone and stone products.
32811Cut stone and stone products.
3291Abrasive, asbestos, and miscellaneous nonmetallic mineral products.
3295aMinerals and earths, ground or otherwise treated.
32961Mineral wool.
331Primary metal industries.
3311Steel works, blast furnaces, and rolling and finishing mills.
33121Steel works, blast furnaces (including coke ovens), and rolling mills.
33171Steel pipe and tubes.
3341Secondary smelting and refining of nonferrous metals.
33411Secondary smelting and refining of nonferrous metals.
3351Rolling, drawing, and extruding of nonferrous metals.
33511Rolling, drawing, and extruding of copper.
3353aAluminum sheet, plate, and foil.
33541Aluminum extruded products.
336aNonferrous foundries (castings).
3365aAluminum foundries.
3391Miscellaneous primary metal products.
3398aMetal heat treating.
33991Primary metal products, not elsewhere classified.
341Fabricated metal products, except machinery and transportation equipment.
3411Metal cans and shipping containers.
34111Metal cans.
34121Metal shipping barrels, drums, kegs, and pails.
3421Cutlery, handtools, and general hardware.
34213Cutlery.
3423aHand and edge tools, except machine tools and handsaws.
3429aHardware, not elsewhere classified.
3432Heating equipment, except electric and warm air; and plumbing fixtures.
34332Heating equipment, except electric and warm air furnaces.
3442Fabricated structural metal products.
34411Fabricated structural metal.
34422Metal doors, sash, frames, molding, and trim.
34431Fabricated plate work (boiler shops).
34442Sheet metal work.
34463Architectural and ornamental metal work.
34492Miscellaneous structural metal work.
3451Screw machine products, and bolts, nuts, screws, rivets, and washers.
34521Bolts, nuts, screws, rivets, and washers.
3461Metal forgings and stampings.
34691Metal stampings, not elsewhere classified.
3472Coating, engraving, and allied services.
34712Electroplating, plating, polishing, anodizing and coloring.
3492Miscellaneous fabricated metal products.
34941Valves and pipe fittings, not elsewhere classified.
34952Wire springs.
34961Miscellaneous fabricated wire products.
3498aFabricated pipe and pipe fittings.
34992Fabricated metal products, not elsewhere classified.
351Industrial and commercial machinery and computer equipment.
353aConstruction, mining, and materials handling machinery and equipment.
3535aConveyors and conveying equipment.
3541Metalworking machinery and equipment.
3541aMachine tools, metal cutting types.
35441Special dies and tools, die sets, jigs and fixtures, and industrial molds.
35451Cutting tools, machine tool accessories, and machinists' precision measuring devices.
3551Special industry machinery, except metalworking machinery.
35551Printing trades machinery and equipment.
3561General industrial machinery and equipment.
3562aBall and roller bearings.
35631Air and gas compressors.
3564aIndustrial and commercial fans and blowers and air purification equipment.
35681Mechanical power transmission equipment, not elsewhere classified.
35691General industrial machinery and equipment, not elsewhere classified.
3571Computer and office equipment.
35713Electronic computers.
35721Computer storage devices.
35771Computer peripheral equipment, not elsewhere classified.
35791Office machines, not elsewhere classified.
3581Refrigeration and service industry machinery.
35851Air-conditioning and warm air heating equipment and commercial and industrial refrigeration equipment.
3589bService industry machinery, not elsewhere classified.
3592Miscellaneous industrial and commercial machinery and equipment.
35922Carburetors, pistons, piston rings, and valves.
3596aScales and balances, except laboratory.
35991Industrial and commercial machinery and equipment, not elsewhere classified.
361Electronic and other electrical equipment and components, except computer equipment.
3611Electronic transmission and distribution equipment.
36121Power, distribution, and specialty transformers.
36131Switchgear and switchboard apparatus.
3621Electrical industrial apparatus.
36211Motors and generators.
36241Carbon and graphite products.
36251Relays and industrial controls.
36291Electrical industrial apparatus, not elsewhere classified.
363aHousehold appliances.
3639aHousehold appliances, not elsewhere classified.
3641Electric lighting and wiring equipment.
36411Electric lamp bulbs and tubes.
36431Current-carrying wiring devices.
36441Noncurrent-carrying wiring devices.
3645aResidential electric lighting fixtures.
36462Commercial, industrial, and institutional electric lighting fixtures.
36482Lighting equipment, not elsewhere classified.
3651Household audio and video equipment, and audio recordings.
36511Household audio and video equipment.
3652aPhonograph records and pre-recorded audio tapes and disks.
3661Communications equipment.
36611Telephone and telegraph apparatus.
36631Radio and television broadcasting and communications equipment.
36691Communications equipment, not elsewhere classified.
3671Electronic components and accessories.
36722Printed circuit boards.
36741Semiconductors and related devices.
36772Electronic coils, transformers and other inductors.
36781Electronic connectors.
36791Electronic components, not elsewhere classified.
3691Miscellaneous electrical machinery, equipment, and supplies.
36921Primary batteries, dry and wet.
36941Electrical equipment for internal combustion engines.
37 1Transportation Equipment.
3711Motor vehicles and motor vehicle equipment.
37131Truck and bus bodies.
37141Motor vehicle parts and accessories.
3721Aircraft and parts.
3721aAircraft.
37281Aircraft parts and auxiliary equipment, not elsewhere classified.
3731Ship and boat building and repairing.
3731aShip building and repairing.
37322Boat building and repairing.
379aMiscellaneous transportation equipment.
3792aTravel trailers and campers.
381Measuring, analyzing, and controlling instruments; photographic, medical, and optical goods, watches and clocks.
3811Search, detection, navigation, guidance, aeronautical, and nautical systems, instruments, and equipment.
38121Search, detection, navigation, guidance, aeronautical, and nautical systems, instruments, and equipment.
3821Laboratory apparatus and analytical, optical, measuring, and controlling instrument.
38211Laboratory apparatus and furniture.
38221Automatic controls for regulating residential and commercial environments and appliances.
38231Industrial instruments for measurement, display, and control of process variables; and related products.
3824aTotalizing fluid meters and counting devices.
38251Instruments for measuring and testing of electricity and electrical signals.
38292Measuring and controlling devices, not elsewhere classified.
3841Surgical, medical, and dental instruments and supplies.
38411Surgical and medical instruments and apparatus.
38421Orthopedic, prosthetic, and surgical appliances and supplies.
38431Dental equipment and supplies.
3844aX-ray apparatus and tubes and related irradiation apparatus.
38451Electromedical and electrotherapeutic apparatus.
3851Ophthalmic goods.
38511Ophthalmic goods.
386aPhotographic equipment and supplies.
3861aPhotographic equipment and supplies.
3871Watches, clocks, clockwork operated devices, and parts.
38731Watches, clocks, clockwork operated devices, and parts.
391Miscellaneous manufacturing industries.
3911Jewelry, silverware, and plated ware.
39111Jewelry, precious metal.
3914aSilverware, plated ware, and stainless steel ware.
39151Jewelers' findings and materials, and lapidary work.
3942Dolls, toys, games, and sporting and athletic goods.
39422Dolls and stuffed toys.
39492Sporting and athletic goods, not elsewhere classified.
3952Pens, pencils, and other artists' materials.
39513Pens, mechanical pencils, and parts.
3952aLead pencils, crayons, and artists' materials.
39531Marking devices.
3961Costume jewelry, costume novelties, buttons, and miscellaneous notions, except precious metal.
39611Costume jewelry and costume novelties, except precious metal.
3965aFasteners, buttons, needles, and pins.
3991Miscellaneous manufacturing industries.
3991aBrooms and brushes.
39932Signs and advertising specialties.
39952Burial caskets.
39992Manufacturing industries, not elsewhere classified.

a = Category contained less than three employers.

[55 FR 12120, Mar. 30, 1990; 55 FR 12778, Apr. 5, 1990, as amended at 55 FR 39575, Sept. 27, 1990; 57 FR 1103, Jan. 10, 1992]
authority: Sec. 4, Pub. L. 101-157, 103 Stat. 938; 29 U.S.C. 201
source: 55 FR 12120, Mar. 30, 1990, unless otherwise noted.