Below are links to a number of widely-known and broadly applied organic standards.
Products which shall be labelled as organic in a country (e.g. USA, Japan, …) or region (e.g. EU) must be produced according to the respective standard.
We already offer certification for the following standards:

EU Organic Farming Standard: Regulation (EC) No 834/07 and its implementation rules Regulation (EC) No 889/08. SRS Organic Standard has been recognised by the EU Commission as equivalent to the EU organic regulations. It involves inspection at your organic operation sites, including subcontractors, certification of organic products and the issuance of transaction documents for organic trade, so-called Certificates of Inspection (CoI). We offer this service in all countries listed in Regulation (EC) No 2021/2325.

JAS: The Japanese Organic Standards are rules for the agriculture and food industry, maintained by the Japanese Government. It provides the standards for certified organic products for the Japanese market. It is made up of a set of documents with Notifications for Production, Processing and Re-Packing, as well as Technical Criteria for personnel involved in organic operations and their duties.

NOP/USDA: Stands for the National Organic Program 7 CFR Part 205, a regulatory program of the United States Department of Agriculture (USDA) Agriculture and Marketing Service. NOP is responsible for developing and enforcement of the US Standards for organic agricultural products.

The China Organic Product Standard GB/T 19630-2019 contains the rules all products that shall be placed on the Chinese market as organic, must be produced and certified against. The current version of the Chinese Organic Standard is valid since 1 January 2020. No official English translation of the standard is available yet. We recommend reading SRS technical papers about GB/T 19630-2019 compliant Plant Production and Food Processing.