Don't make it: The best solution is not to generate regrind. Design and mold engineers on the front end (or as a review) should use mold designs, hot-runner and runnerless systems, and use at least 25 percent regrind for all trial molding runs.
Use it up: Each plant consumes its own regrind.
Reprocess it: Look for cost savings by using regrind from other plants.
Sell it: Some regrind that has no further use within AMP can be sold through outside brokers. The price is generally minimal and the ultimate user may very well be an AMP competitor. However, it usually is better than paying to have it hauled away.
Trash it: The last choice. It will cost to landfill or incinerate it.