Document #12809, effective 12-15-19, adopted or readopted with amendment all of the rules in Chapter Env-Wt 900 and changed the chapter heading from “Stream Crossings” to “Stream Crossings; Certified Culvert Maintainer Program.”

Document #12809 replaces all prior filings for rules in the former Env-Wt 900.

The prior filings for former Chapter Env-Wt 900 included the following documents:

#9714, eff 5-12-10

#10491, eff 12-21-13

#12578, eff 7-21-18