For plastic recycling in particular, the plastic identification code (three chasing arrows with the number 1 to 7) informs consumers and the sorting facility what kind of plastic it is made out of ...

By embedding a microscopic change in a pattern of pixels—called an invisible bar code—on the label, software can instantly identify the package so it can be sorted and recycled correctly.

Two manufacturers of plastic venting systems are pushing for a national fuel gas code in the United States that requires Underwriters Laboratories Inc. certification for use in some natural gas ...

Plastic Code 6: Polystryene Brittle, hard plastics — including yogurt containers, egg boxes, fast food trays, video cases, disposable cutlery, vending cups and coat hangers.

Reusing plastic bottles with codes #1 and #2 is probably fine to do on occasion, provided you take certain precautions.

Electronic labels made from plastic semiconductors can now pick up and respond to radio signals at a frequency suitable for use on products.

Changes to plumbing code expected to sharply reduce Philly construction costs Cheaper and more environmentally-friendly plastic infrastructure is now the norm.