For Industry

What are the labeling requirements that my business must meet?

The requirements for labeling pet foods, treats and other pet food items are specified in a section of AAFCO's Official Publication, entitled "Model Regulations for Pet Food and Specialty Pet Food." There are 11 "Model Regulations." Some will apply to home-manufactured treats and foods. "Model Regulation PF2," "Label Format and Labeling," gives the general information that must appear on product labels and refers to some of the other "Model Regulations" for more in-depth specifics.

Under the "Model Regulations," pet food products are expected to contain

  • An appropriate product name;
  • The species of pet(s) for which the product is intended;
  • A quantity statement for the amount of food in the package or container;
  • A guaranteed analysis;
  • A list of all ingredients in the product;
  • A statement of nutritional adequacy, if required;
  • Feeding directions, if required; and,
  • Name and address of the manufacturer or distributor

Product name and intended species

According to the AAFCO publication, the name of the product should fairly represent what the product is. An example of a name that unfairly represents a product to be something other than what it is would be “Beef Juice Gravy for Dogs,” when the product was composed of water and corn starch. Often the species for which the product is intended is incorporated into the product name, such as the words “for Dogs” in the above example. It is recommend that the name of each species for which the product is intended be presented on the label in words, because pictures or vignettes may be insufficient to clearly indicate the species of intended use.

Quantity statement

The AAFCO publication also has provisions about the quantity statement, which is probably better known as the “net weight” or “net contents” statement.

The quantity statement should appear in the bottom third of the “principal display panel.” This panel is the part of the label most likely to be displayed when the product is offered for sale. The quantity statement should be separated from other statements around it. The amount of separation or space above and below the quantity statement must be at least the height of the lettering used in the quantity statement. So, if you use ¼ in. lettering in the quantity statement, you should have a ¼ in. of clear space above and below the quantity statement. You should also have a clear space before and after the quantity statement that is two times the width of the letter N used in the word “Net” in “Net Contents” or “Net Quantity.”

Net contents are generally expressed in terms of weight or count for dry products and fluid measures for liquids. Weight should be in terms of avoirdupois (pounds, ounces) units. Metric units of weight (kilograms [kg] grams [g]) may be voluntarily expressed in parentheses after the avoirdupois units. Units of liquid measure should be in terms of U.S. gallon, or quart, pint and fluid ounce and subdivisions thereof. Metric units of volume (liters [L] or milliliters [ml]) may be voluntarily expressed in parentheses after the U. S. liquid measure.

Guaranteed Analysis

According to the AAFCO model regulations, all pet food products should have a section of the label titled “Guaranteed Analysis.” For most products, guarantees should be given for the minimum percentage of crude protein, the minimum percentage of crude fat, the maximum percentage of crude fiber and the maximum percentage of moisture.

Guarantees for other nutrients may be needed if the product is promoted as containing significant amounts—or being a good source—of specific nutrients. Other nutrients may also be guaranteed voluntarily as specified in “Model Regulation PF4.”

The values for nutrient content are determined by specific gravimetric (weight) and chemical analyses on representative samples of the product. These analyses can be obtained from various sources. First, there are commercial food and feed analysis laboratories throughout the United States that will do the analysis for a fee. Second, many land grant universities, or their agricultural extension offices, have forage or feed testing laboratories that may be able to perform the analyses for a fee or as a service to residents of the State. Third, some State feed control offices have a feed analysis laboratory associated with the office that may perform the analyses on request. The Official Publication lists the contact information for the feed control offices in each State.

A specific number (e.g., 21%), not a range (e.g., 18-25%), and a statement as to whether that number is a minimum or a maximum, must be stated for each guarantee. Values for minimum content indicate the product contains at least the amount listed and will analyze as containing at least that amount of the nutrient within the allowed analytical variation listed for that nutrient in the Official Publication. Values for maximum content indicate the product contains no more than the amount listed and will analyze as containing no more than that amount of the nutrient, again within the allowed analytical variation.

The guaranteed values should be representative of the actual nutrient content of the product and cannot be simply picked or set artificially low in the case of minimums, or high in the case of maximums.

Because it is unlikely that the exact same value for each nutrient will be obtained when different batches of the same formulation (recipe) of the product are analyzed, it is helpful to know what the typical variation is for each of the guaranteed nutrients. You can determine the variation by analyzing at least three—and preferably more—batches of the product to determine the variability for each nutrient being guaranteed. The exact number of batches analyzed will be determined by the available resources, the time between batches and the variability observed for the nutrient. If variability is large, more batches are required to assess the extent of the variability and to set guaranteed values with respect to the allowed analytical variances in the Official Publication. This is somewhat of an iterative process. If you are unsure of what to set for a particular guarantee based on actual analytical results, you should consider consulting individuals experienced in interpreting analytical results and variability.


Under the AAFCO model regulations, all pet food products should have a section of the label containing a list of the ingredients in the product. All ingredients should be listed by their common or usual name, and in descending order of predominance by their weight in the product. All ingredients should be listed in the same size letters or type. Thus, the ingredient weighing the most in the product is listed first, the ingredient weighing the second most is listed second, and so on, until all ingredients are listed.

Statement of nutritional adequacy

Products that are clearly identified as “treats,” “snacks” or “supplements” are not required to have a statement of nutritional adequacy on their label. But nothing prevents you from voluntarily placing a statement of nutritional adequacy on your label.

According to the Official Publication, products that may be interpreted by statements on their label to be the sole source of daily nutrients, other than water, required by the animal to which the product is fed should have a statement informing the purchaser how it was determined that the product meets the animal’s daily nutrient needs for its stage of life as specified in “Model Regulation PF7,” sections (a), (b), or (c) or that the product is intended for intermittent or supplemental feeding only.

Feeding directions

Products with a statement of nutritional adequacy indicating that the product will meet the nutritional requirements for one or more stages of life of the animal to which the product is fed, including treats, snacks, and supplements that make a claim for nutritional adequacy, must have feeding directions that are consistent with meeting the animal’s daily nutrient requirements from the product, according to AAFCO. Feeding directions should be in common terms of product usage that are practical for the average user to measure.

Name and address of manufacturer or distributor

The manufacturer (i.e., if you make the product and sell it) or distributor (i.e., if you have the product made for you and sell it) must list their name and address on the product label, according to the AAFCO publication. The address must include the street address, city, State, and zip code. The street address may be omitted if your firm is listed in the current city directory or telephone directory for the city listed on the label.

Product and manufacturer registration and licensing

Most States require that products distributed in that State be registered or licensed (the term differs between the States) with the State’s feed control office. The Official Publication lists the name and address for the feed control official and office in each of the 50 States. The Official Publication also contains a table of fees charged by each State for registering or licensing products and facilities. If you sell product in a State or ship it direct to individual purchasers in a State as a result of Internet or mail-order sales, then the product should be registered in that State.

Page Last Updated: 05/22/2016
Note: If you need help accessing information in different file formats, see Instructions for Downloading Viewers and Players.