1. The facilities included in the definition of "Grain Elevators" are indicated in the NFPA 61B-1980 standard, paragraphs 1-1.1* and A-1.1: viz., 1-1.1* This standard shall apply to all facilities designed for receiving, shipping, handling, and storing of bulk raw agricultural commodities. A-1-1 Such facilities include grain elevators, transfer facilities with or without storage capability, bulk storage buildings, and grain storage and handling facilities not involving further processing of agricultural commodities.

Those grain handling facilities which have bucket elevators and other similar equipment found typically in a grain elevator are covered by the OSHA instruction. Where such facilities have other operations as well, such as milling operations, these operations are not covered by the instruction.

The milling operation, covered by NFPA 61D, is not covered by OSHA Instruction CPL 2-1.4, whose title refers only to grain elevator inspections. This is further confirmed in our Hazard Alert. Appendix II, paragraph A.(1)(c), which directs the inspection team or the assigned compliance officer to utilize NFPA 61B.

2. The method that you propose is an indirect one to sense leg belt slowdown by detecting a choke, which is only one cause of belt slowdown. It would not satisfy the requirement intended to detect all leg belt slowdowns from whatever cause such as where the belt begins to slip on the head pulley.

3. The answer is "yes" for employee safety consideration if they are located away from typical work situations or employee frequented areas.

4. The answer is "no". The requirement is directed to grain receiving areas before the bucket elevator - not processing machinery such as the scalperator. NFPA 61B-1980 states the following in paragraphs 5-2.2* and A-5-2.2:

5-2.2* Grain receiving facilities shall be equipped with one or more devices such as grating, wire mesh screens, permanent magnets, approved electromagnets, pneumatic separators, or specific gravity separators.

A-5-2.2 Such devices should be installed on hoppers, conveyors or spouts handling grain from truck dump pits, rail car dump pits, and barge or ship unloading systems prior to entry of the grain into subsequent conveyors, elevators, or processing machinery to minimize the entry of tramp metal and other foreign objects.

Furthermore, the Grain Elevator Industry Hazard Alert, page 5, emphasizes that it is generally believed that the bucket elevator is the location in the grain elevator complex in which fires most frequently occur, with one ignition source being tramp metal.

1. OSHA may amend CPL 2-1.4 in the near future, and

2. OSHA intends to promulgate a grain elevator standard.