Honda Motor Co. will start evaluating all of its suppliers on their environmental aspects under the newest revision of its Green Purchasing Guidelines.

First developed in 2001, the guidelines lay out purchasing policies for the company to follow. The latest changes were made to better track the emissions and other impacts of products further back in their life cycles, beyond primary suppliers.

Instead of only applying to suppliers in Japan, the guidelines are being applied to all parts and materials suppliers.

In addition to being evaluated on quality, cost, delivery and development, suppliers will also be evaluated in an environment category. 

While the guidelines previously were focused on managing environmental impacts during production, they are now intended to cover all corporate activities. And along with aimed at managing chemical use, they are also supposed to be used to improve Honda vehicle fuel efficiency.

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