AGRICULTURAL SCIENCES DIVISION

4.12.727 HOSE SPECIFICATIONS Hose and hose connectors shall be fabricated of materials that are resistant to the action of the nitrogen fertilizer solution being used. Hose and hose connectors shall be designed for at least the maximum pressure to which they may be subjected. Aut…

4.12.728 SAFETY DEVICES Every pressure-vented container shall be provided with one or more safety pressure relief valves. The rate of discharge shall be in accordance with the provisions of Table E. Container safety pressure relief valves shall be set to start-to-discharge at a p…

4.12.729 TRANSFER OF LIQUIDS A competent attendant shall supervise the transfer of liquids from the time the connections are first made until they are disconnected. Pumps shall be of a material suitable for use with the solution being handled and designed to withstand the working…

4.12.730 TANK CAR LOADING AND UNLOADING POINTS AND OPERATIONS A sign reading, "Stop-Tank Car Connected" or "Stop-Men at Work", shall be displayed at the active end or ends of the siding while the car is connected for loading or unloading. While tank cars are on siding for loading…

4.12.731 LIQUID LEVEL GAUGING DEVICES Gauging devices shall be arranged so that the maximum liquid level to which the container may be filled is readily determinable. Gauging devices shall have a design working pressure at least equal to the design pressure of the container on wh…

4.12.732 INDICATING DEVICES Because of explosion and extreme corrosion hazard, no thermometers or other devices containing mercury shall be used where there is slightest probability of introducing mercury into nitrogen fertilizer solutions. Authorizing statute(s): Sec. 80-10-503,…

4.12.733 STORAGE INSTALLATIONS FOR NITROGEN FERTILIZER SOLUTIONS Location of storage containers. Permanent storage shall be located outside of densely populated areas. If located within the corporate limits of a village, town or city, written approval of the municipality's govern…

4.12.734 SYSTEMS MOUNTED ON TRUCKS, SEMI-TRAILERS AND TRAILERS FOR TRANSPORTATION OF NITROGEN FERTILIZER SOLUTIONS ARM 4.12.725 applies to this section. Mounting containers in trucks: Stops (wood or metal blocks) shall be mounted on the truck, semi-trailer, trailer, or on the con…

4.12.735 SYSTEMS MOUNTED ON VEHICLES AND IMPLEMENTS OF HUSBANDRY FOR THE TRANSPORTATION OF NITROGEN FERTILIZER SOLUTIONS This section applies to containers of 3,000-gallon capacity or less and pertinent equipment (piping, valves and gauges attached to the container) mounted on ve…

4.12.736 SYSTEMS MOUNTED ON VEHICLES AND IMPLEMENTS OF HUSBANDRY FOR THE APPLICATION OF NITROGEN FERTILIZER SOLUTIONS Working pressure and classifications of containers. Containers shall be constructed in accordance with ARM 4.12.725. Mounting of containers shall be as follows: E…

4.12.737 CERTIFIED STATEMENT A certified statement shall be filed by persons owning an anhydrous ammonia facility on forms furnished by the department stating that all the requirements, safety equipment, and the requirement of these rules have been met. This statement must be fil…

4.12.738 RIGHT OF ENTRY FOR INSPECTIONS Authorized personnel from the department of agriculture shall have a right to inspect anhydrous ammonia facilities at all reasonable times for the purpose of determining compliance with the provisions of these rules. Authorizing statute(s):…

4.12.739 ENFORCEMENT If, after an inspection, the department determines a violation of these rules may have occurred, then it shall issue a notice of violation to the owner of the anhydrous ammonia facility. The notice of violation shall include: the nature and evidence of the vi…

4.12.740 REQUEST FOR VARIANCE A person who owns or is in control of anhydrous ammonia facility may apply in writing to the Montana department of agriculture for a temporary or permanent variance from any requirement of the rules. The application for a variance shall include such …

4.12.741 VARIANCE PROCEDURE The Montana department of agriculture may grant a temporary or permanent variance if it finds that: the present or proposed anhydrous ammonia facility does not constitute a danger to public health or safety and; compliance with the rules from which the…

4.12.742 PRE-EXISTING FACILITIES If after an inspection the department determines that a facility in existance prior to October 1, 1985 is not in compliance with the provisions in the Anhydrous Ammonia Facility Safety Act or these rules and that noncompliance may constitute a saf…

4.12.743 TABLES Table A - Rate of Discharge. TABLE A - RATE OF DISCHARGE Minimum required rate of discharge in cubic feet per minute (CFM) of air for safety relief valves. Discharge measured at 60 degrees F and atmospheric pressure (14.7 pounds per square inch) . Surface Area Sq.…