(a) No later than January 31, 2015, and every three months thereafter, a rail carrier shall prepare and submit to the office commodity flow data for the prior three months broken down by county and track route relevant to the 25 largest hazardous material commodities transported through the state, including tank cars loaded with oil cargo. The commodity flow data shall conform to all of the following:

1. (1) Be in accordance with Subpart G of Part 172 of Title 49 of the Code of Federal Regulations and in Standard Transportation Commodity Code numeric sequence.
2. (2) Include a description of the hazardous material or oil cargo and commodity name organized by number of carload type, including tank cars and gondola cars, intermodal loads, including trailers, containers and tank containers, and total loads transported within a county over the prior three months.

(c)

1. (1) Beginning January 31, 2015, consistent with the United States Department of Transportation’s Emergency Order Docket No. DOT-OST-2014-0067, and any subsequent amendments to that order, a rail carrier shall prospectively estimate and submit to the office notification of the weekly movements of trains through a county, including, but not limited to, track route and volumes of shipments of Bakken oil in amounts equal to or greater than one million (1,000,000) gallons per train consist. A rail carrier shall update the notification provided pursuant to this paragraph once every six months.
2. (2) Notwithstanding paragraph (1), a rail carrier shall update and notify the office within 30 days of the rail carrier determining that there will be a material change in the estimated volume of Bakken oil plus or minus 25 percent per week relative to the most recent estimate previously submitted to the office.