The Joint Industry Guide is a document that defines a list of substances that pose environmental issues related to materials used in the electronics industry. The standard guide was developed by many large companies in the electronics industry that have substance restriction requirements. The key organizations involved in the development of the JIG-101 were the Electronic Industries Alliance, JEDEC, and the Japan Green Procurement Survey Standards Initiative Group. The information that follows was taken directly from the Joint Industry Guide.

The Joint Industry Guide Includes:

• The list of substances and materials for disclosure
• The composition amount that requires disclosure (and threshold levels)
• The regulatory requirements that establish threshold levels where appropriate
• A set of information fields for data exchange

The guide establishes two categories of materials and substances to be declared. These categories are based on the following criteria.

The JIG A list includes materials and substances under currently enacted legislation that:

1. Prohibits their use
2. Restricts their use
3. Requires reporting or results in other regulatory effects

The JIG B list includes materials and substances that the industry has determined relevant for disclosure because they meet one or more of the following criteria:

1. Materials/ substances that are of significant environmental, health, or safety interests
2. Materials/ substances that would trigger hazardous waste management requirements
3. Materials/ substances that could have a negative effect on end-of-life management (the WEEE Directive).

The JIG committee is committed to updating this list as technology and legislations change as time moves on.

The Joint Industry Guide document (JIG-101) is available for free at http://www.eia.org.