The Complete Guide to Japan's Food Sanitation Act for Importers

What the Food Sanitation Act covers

Japan's Food Sanitation Act (Shokuhin Eisei Ho) is the primary law governing the safety of all food and beverages sold in Japan, including imported products. Enforced by the Ministry of Health, Labour and Welfare (MHLW), it sets standards for ingredients, additives, labeling, and the import notification process.

The Act applies to all food products intended for human consumption, food contact materials (packaging, containers), and food additives. Any product imported for commercial sale must comply before it can clear customs and reach consumers.

The Act is periodically revised. The 2018 revision introduced stricter controls on agricultural chemical residues (the "positive list" system) and tightened oversight of food additives. As of 2026, these remain the most significant compliance hurdles for overseas importers.

Prohibited additives and ingredients

Japan operates a positive list system for food additives — meaning only additives explicitly approved by MHLW are permitted. This differs from many Western markets, where unapproved additives may be tolerated if they are generally recognized as safe.

Common additives permitted in the US or EU that are not approved in Japan include certain artificial colorings (e.g., Red 40, Yellow 5 in some applications), some preservatives, and specific flavor enhancers. This is one of the most frequent compliance failures for imported food products.

Always cross-reference your full ingredient list against MHLW's current approved additive list before finalizing your Japan formulation. Reformulation is common and should be factored into your launch timeline.

Import notification requirements

All food imports into Japan require an Import Notification (Yunyu Todoke-de) submitted to the MHLW quarantine station at the port of entry. This is separate from customs clearance and must be completed before or alongside the customs declaration.

The notification is submitted electronically via Japan's Food Import Reporting system (FIRS). As an overseas brand without a Japanese entity, you will need a licensed Importer of Record (IOR) — such as Japan Market Gateway — to file on your behalf.

• Notification must include: product name, ingredients, country of origin, manufacturer information, intended use, and quantity
• For products with complex ingredients or health claims, supporting documents (certificates of analysis, manufacturing records) are required
• Filing window: notifications should be submitted 7 days before estimated arrival for review-required products

MHLW inspection process

After notification submission, MHLW categorizes your product into one of three inspection tracks:

First-time imports from a new manufacturer or product category are almost always subject to sampling inspection. MHLW tests for prohibited additives, pesticide residues, microbial contamination, and labeling accuracy.

Products that pass inspection receive an Import Confirmation Notice, which must be retained and can be referenced for future shipments of the same product.

Common rejection reasons and how to avoid them

MHLW rejection data consistently shows the same categories of non-compliance. Understanding these in advance — before your first shipment — is the most efficient use of your pre-launch preparation time.

• Unapproved additives: The single most common rejection reason. Always verify every ingredient against the current approved list.
• Pesticide residue violations: Japan's positive list for agricultural chemicals is stricter than Codex standards. Certificates of analysis from accredited labs are essential.
• Labeling non-compliance: Missing Japanese labeling, incorrect allergen declarations, or prohibited health claims will result in detention.
• Microbiological failures: Japan has strict standards for coliforms, E. coli, and specific pathogens. Ensure manufacturing practices meet Japanese standards.
• Missing documentation: Incomplete notification, missing CoA, or absent manufacturer certificates will delay clearance.