“Green” purchasing is no different from any other form of product evaluation usually done before a purchase is made, be it by governments, businesses or consumers. Environmental purchasing simply considers a greater range of product criteria. Departments may begin an environmental purchasing program by focusing initially on certain types of products or services and expanding to others as they gain experience.

Recycled products may contain either a percentage of materials collected from office/curbside recycling programs (postconsumer), a percentage of materials generated after the manufacture of a product but before it reaches the end-user (pre-consumer) and/or virgin materials. The combination of postconsumer and pre-consumer content provides the total recycled content. For example, recycled content copy paper with 30% postconsumer and 10% pre-consumer content would have 40% total recycled content. 

Purchasers are encouraged to evaluate multiple environmental impacts of everyday products through their life cycle and to select products with attributes that minimize environmental and health risks. A product’s environmental attributes can include: