The bluesign System Black Limits (BSBL) specify threshold limits for chemical substances in finished chemical products, such as auxiliaries or dyes. The compilation of substances in the BSBL is an extract of the bluesign Tool. It includes all substances from the publicly available bluesign System Substances List (BSSL), consumer safety limits in which the consumer safety limits for usage bans are defined. BSBL is revised at least once a year.

The bluesign System Substances List (BSSL) specifies consumer safety limits for chemical substances in articles and consumer products. Using bluesign approved chemical products which are listed in the bluesign FINDER assures compliance of manufactured articles and consumer products with the BSSL limits. BSSL is revised at least once a year.

The bluesign RESTRICTED SUBSTANCES LIST (RSL) is an extract of the BSSL, and contains consumer safety limits and recommended testing methods for the most important and legally restricted substances in textile/leather articles and accessories. Brands and retailers can use this RSL as an orientation for the terms and conditions of purchase and together with a testing matrix as a guide for appropriate testing of articles (such as textiles). RSL is revised on the basis of the BSSL.