A general revision of the rule, involving all outside stakeholders, was concluded with the adoption of a major revision on 09/01/2013. The revision considered comments to generally update the rule by adding new treatment technologies, refining the requirements for technologies existing in the rule, and generally improving the format of the rule. The Division, along with outside stakeholders, is presently in the process of fine tuning the 09/01/2013 version of the rule with a minor revision scheduled to be adopted in 2015. This revision is intended to correct any errors in the 2013 revision and install some minor technical upgrades.