Bottled water labeling requirements come from the FDA, which regulates bottled water as a packaged food. Every bottle sold in the United States must carry four basic pieces of information (a product name, net contents, the responsible business’s name and address, and any ingredients), use a water-type name that matches the source or treatment method defined in 21 CFR 165.110, and disclose a municipal source when the water has not been processed enough to qualify as purified. Getting any of this wrong makes the product legally “misbranded” under the Federal Food, Drug, and Cosmetic Act and exposes the company to warning letters, seizures, and recalls.
The Four Mandatory Label Elements
Every bottled water label, regardless of type, must show the same four items required of all packaged foods.
- A statement of identity on the front of the package giving the common or usual name of the product, such as “Drinking Water” or “Spring Water.”1eCFR. 21 CFR 101.3 – Identity Labeling of Food in Packaged Form
- Net contents, expressed as a liquid measure such as fluid ounces or liters.
- The name and place of business of the manufacturer, packer, or distributor, including street address, city, state, and ZIP code. The street address can be dropped only if it is already listed in a current city or telephone directory.2eCFR. 21 CFR 101.5 – Name and Place of Business of Manufacturer, Packer, or Distributor
- An ingredient list for anything beyond the water itself. Bottled water by definition contains no added ingredients, but it may include safe antimicrobial agents and fluoride within set limits, and those additions must be listed.3eCFR. 21 CFR 165.110 – Bottled Water
Miss one, or make one misleading, and the FDA can treat the product as misbranded.
Choosing the Right Water-Type Name
The name on the front label is not a marketing decision. Each defined type in 21 CFR 165.110 is tied to a specific source, treatment, or physical property, and using the wrong name is itself a labeling violation.3eCFR. 21 CFR 165.110 – Bottled Water
Source-Defined Names
Spring water must come from an underground formation where water flows naturally to the surface. It can be collected at the spring itself or through a borehole tapping the same underground formation.
Artesian water comes from a well drilled into a confined aquifer where natural pressure pushes the water level above the top of the aquifer. The water does not need to reach the surface on its own; it just needs to rise above the aquifer’s upper boundary.
Mineral water must contain at least 250 parts per million of total dissolved solids from a geologically and physically protected underground source, with no minerals added after collection.
Ground water comes from a subsurface saturated zone under pressure at or above atmospheric, and it must not be under the direct influence of surface water. Well water is drawn from a hole bored, drilled, or otherwise constructed in the ground that taps an aquifer. Well water describes the collection method; ground water describes where the water sits geologically.
Treatment-Defined Names
Purified water is defined by process, not source. The water must go through distillation, deionization, reverse osmosis, or a comparable process and meet the standards in the U.S. Pharmacopeia. A company can legally start with municipal tap water, purify it to those standards, and call the result “purified water.”
Sterile water must pass the sterility tests in the U.S. Pharmacopeia. It is a high-bar processing category that serves a different market than typical drinking water.
Sparkling bottled water must contain the same amount of carbon dioxide after treatment and bottling as it did at the source. Carbon dioxide lost during processing can be replaced, but the final level must match the natural one. Seltzer water, soda water, and tonic water are not regulated under the bottled water standard.
When the Label Must Disclose a Municipal Source
If the water comes from a community water system, the label has to say so. The statement “from a community water system” or “from a municipal source” must appear on the front of the package, immediately before or after the product name, in type at least half the size of the product name and no smaller than one-sixteenth of an inch.3eCFR. 21 CFR 165.110 – Bottled Water
There is a workaround built into the rules, and it explains a lot of consumer confusion. Many popular brands start with municipal water but process it enough to qualify as “purified water” under the U.S. Pharmacopeia standard. Once the water meets that bar, the municipal-source disclosure no longer applies.
Mineral Content Statements
Mineral water carries an extra labeling layer based on total dissolved solids. Below 500 ppm, the label must say “low mineral content.” Above 1,500 ppm, it must say “high mineral content.” Between those two thresholds, no additional mineral-content statement is required.3eCFR. 21 CFR 165.110 – Bottled Water
Nutrition Facts and Fluoride
Plain bottled water with no significant nutrients and no nutrient claims is exempt from the standard nutrition facts panel.4eCFR. 21 CFR 101.9 – Nutrition Labeling of Food The moment the label carries a nutrient content claim, such as “low sodium” or “good source of calcium,” full nutrition labeling kicks in.5eCFR. 21 CFR 101.13 – Nutrient Content Claims
Fluoride can be added to bottled water up to 0.7 milligrams per liter in domestically packaged product.3eCFR. 21 CFR 165.110 – Bottled Water When fluoride is added, it must appear in the ingredient list, and any statement on the label about added fluoride requires a simplified nutrition facts panel.4eCFR. 21 CFR 101.9 – Nutrition Labeling of Food Bottled water without added fluoride follows separate, higher natural-fluoride limits that range from 1.4 mg/L in the warmest climates to 2.4 mg/L in the coolest, based on the annual average maximum daily air temperature where the water is sold.
Geographic Names on the Label
A brand cannot use a place name that suggests the water came from a particular location when it did not. If a geographic name appears on a label without that connection, the words “bottled water” must appear clearly and prominently next to the geographic name to prevent deception.3eCFR. 21 CFR 165.110 – Bottled Water
Foreign-Language Labels
If a label includes text in a foreign language aimed at consumers who may not read English, every mandatory label element must also appear in that foreign language. Narrow exceptions apply: a foreign-language brand name, trademark, or a food term with no English equivalent (like “antipasto”) does not by itself trigger duplication of every mandatory statement.6Food and Drug Administration. CPG Sec. 562.400 Foreign Language Declarations on Food Labels The FDA looks at the overall impression of the label to decide whether foreign-language content is directed at non-English speakers.
Flavored and Enhanced Waters
Adding flavors, electrolytes, or nutrients does not free the product from bottled water rules. If the product name still includes the word “water” (for example, “Berry Flavored Spring Water Beverage”), the water portion must meet all standard bottled water requirements. Added nutrients like electrolytes or amino acids have to appear in the ingredient list and comply with FDA safety rules.7Food and Drug Administration. FDA Regulates the Safety of Bottled Water Beverages Including Flavored Water and Nutrient-Added Water Beverages Adding nutrients also makes a full nutrition facts panel far more likely, because any nutrient content claim on the label triggers the requirement.
What Happens If a Label Is Wrong
A bottled water product that lacks a required element, uses the wrong water-type name, hides a municipal source, or makes a misleading statement is legally misbranded under the Federal Food, Drug, and Cosmetic Act. That status gives the FDA authority to issue warning letters, seize product, and pursue recalls. Because the water-type definitions turn on source and treatment, the label decision often has to be made in coordination with plant operations, not by the marketing team alone.