Malaysian halal certification rests on a written national standard. JAKIM's portal refers to MS 1500 — Halal Food: Production, Preparation, Handling and Storage – General Guide.
Who developed it
The standard was developed under the Malaysian Standards system by the National Industrial Standardization Committee on Halal matters (ISC I), with representation from multiple organisations. It is published by the Department of Standards Malaysia under the Ministry of Science, Technology and Innovation — not by JAKIM.
That split matters: JAKIM administers certification, while the technical standard behind it is published by the national standards body.
What it contains
JAKIM's portal describes MS 1500 as practical guidelines for the food industry on preparing and handling halal food, including nutrient enhancers. Its scope runs across the chain: production, preparation, handling and storage.
Note how that scope mirrors the statutory definition of halal — which also reaches equipment and storage, not only ingredients.
International position
The portal states the document has been through the processes required by international standardisation agencies such as ISO, and that the standard is one of the government initiatives behind establishing Malaysia as a halal food hub.
Version
JAKIM's procedure page refers to MS 1500:2009. Malaysian Standards are revised periodically, so confirm the current edition with the Department of Standards Malaysia before relying on it for compliance work.