Supply Chain ManagementSupply Chain Management

Restricted Material Information from Suppliers


European legislation like REACH and RoHS requires manufacturers and suppliers to provide information about restricted substances that needs to be passed on through the supply chain.

As such Siemens and its affiliated companies (“Siemens Group”) require that suppliers declare whether the product delivered to Siemens Group contains any substances that are restricted by such legislation. For doing so, suppliers need to complete the Siemens Substance Declaration to begin with, which is based on the Siemens Norm 36350, part 2. In cases where suppliers have products that contain restricted substances as specified through the Siemens Substance Declaration, the supplier must declare such content to Siemens. To provide the opportunity for our supplier base to increase their efficiency concerning substance declaration, Siemens Group is supporting the centralized master database, called BOMcheck, where suppliers can insert their substance declaration.

Declaration Methods BOMcheck

BOMCheck: Siemens preferred Supplier Substance Declaration Method

You probably have had other customers approach you for this kind of information, and we want to help to find an efficient approach for this. So, together with other manufacturing companies, including Philips, GE, Agfa, Hitachi, Toshiba, IBM, Intel and Canon, we have been supporting an industry-wide initiative of a substance declaration web database called BOMcheck. BOMcheck provides an easy-interface method to enter the requested data for substance declaration and can be accessed by all participating customers. We would like to encourage you to join BOMcheck and use this tool to provide us with the requested substance declaration for your products. More detailed information on BOMcheck, how it can help you to provide material data to multiple customers and how you can register can be found under:

-refer to the enclosed information: BOMcheck substances declarations web database.

Format for electronic transfer of Substance Declaration:

An alternative to BomCheck  If you choose not to use BOMcheck, but any product you deliver to Siemens Group contains any substances that are listed in the List of Declarable Substances we will require additional details on a part number basis. The Declaration and part number related information must be renewed every time the legal basis for the List of Declarable Substances changes. According to the announced enlargement of the REACH candidate list we expect that this is going to be about twice per year. Therefore we strongly recommend using BOMcheck.


National and international legislation pertaining to environmental protection include:


Restrictions and prohibitions regarding the use of substances that could be hazardous to humans or the environment. Examples of such legislation are numerous international, national and local pieces of legislation on chemicals, batteries, and packaging materials, including the European directive “Restriction of Hazardous Substances (RoHS)”, RoHS-type regulations in China, South Korea and California, or mercury restriction regulations in various U.S. states.

Since July 2006, the "Restrictions of Hazardous Substances (RoHS)" European Directive 2002/95/EC has banned the use of lead, cadmium, mercury, hexavalent chromium as well as the flame protection agents polybrominated biphenyls (PBBs) and polybrominated diphenylethers (PBDEs).


Information and registration requirements for certain substances contained in the products. This includes the “Registration, Evaluation, Authorization and Restriction of Chemicals (REACH)” regulation No 1907/2006 in Europe. This European Regulation requires all suppliers to comply with the following requirements when they supply parts, components or assemblies (articles according to REACH) to the next manufacturer in the supply chain:-provide Candidate List substance declarations from October 2008 (REACH Article 33) -comply with substance restrictions from June 2009
(REACH Article 67).
Further details about REACH requirements for component suppliers and equipment manufacturers are provided in a free guide published on:

or can be found under Reach@Siemens