I posted this back in 2004 when this was being discussed. FYI, here it is again.
An FRA guy I know gave me this information regarding regulations regarding tourist railroads. It is from the Appendix of 49 CFR Part 209 and reads as follows:
"FRA exercises jurisdiction over tourist, scenic, and excursion railroad operations whether or not they are conducted on the general railroad system. There are two exceptions: (1) operations of less than 24-inch gage (which, historically, have never been considered railroads under the Federal railroad safety laws); and (2) operations that are off the general system and "insular" (defined below).
Insularity is an issue only with regard to tourist operations over trackage outside of the general system used exclusively for such operations. FRA considers a tourist operation to be insular if its operations are limited to a separate enclave in such a way that there is no reasonable expectation that the safety of any member of the public'except a business guest, a licensee of the tourist operation or an affiliated entity, or a trespasser'would be affected by the operation. A tourist operation will not be considered insular if one or more of the following exists on its line:
� A public highway-rail crossing that is in use;
� An at-grade rail crossing that is in use;
� A bridge over a public road or waters used for commercial navigation; or
� A common corridor with a railroad, i.e., its operations are within 30 feet of those of any railroad.
When tourist operations are conducted on the general system, FRA exercises jurisdiction over them, and all of FRA's pertinent regulations apply to those operations unless a waiver is granted or a rule specifically excepts such operations (e.g., the passenger equipment safety standards contain an exception for these operations, 49 CFR 238.3(c)(3), even if conducted on the general system). When a tourist operation is conducted only on track used exclusively for that purpose it is not part of the general system. The fact that a tourist operation has a switch that connects it to the general system does not make the tourist operation part of the general system if the tourist trains do not enter the general system and the general system railroad does not use the tourist operation's trackage for any purpose other than delivering or picking up shipments to or from the tourist operation itself.
If a tourist operation off the general system is insular, FRA does not exercise jurisdiction over it, and none of FRA's rules apply. If, however, such an operation is not insular, FRA exercises jurisdiction over the operation, and some of FRA's rules (i.e., those that specifically apply beyond the general system to such operations) will apply. For example, FRA's rules on accident reporting, steam locomotives, and grade crossing signals apply to these non-insular tourist operations (see 49 CFR 225.3, 230.2 amd 234.3), as do all of FRA's procedural rules (49 CFR parts 209, 211, and 216) and the Federal railroad safety statutes themselves.
In drafting safety rules, FRA has a specific obligation to consider financial, operational, or other factors that may be unique to tourist operations. 49 U.S.C. 20103(f). Accordingly, FRA is careful to consider those factors in determining whether any particular rule will apply to tourist operations. Therefore, although FRA asserts jurisdiction quite broadly over these operations, we work to ensure that the rules we issue are appropriate to their somewhat special circumstances.
It is important to note that FRA's exercise of its regulatory authority on a given matter does not preclude it from subsequently amending its regulations on that subject to bring in railroads originally excluded. More important, the self-imposed restrictions on FRA's exercise of regulatory authority in no way constrain its exercise of emergency order authority under section 203 of the Safety Act. That authority was designed to deal with imminent hazards not dealt with by existing regulations and/or so dangerous as to require immediate, ex parte action on the government's part. Thus, a railroad excluded from the reach of any of FRA's regulations is fully within the reach of FRA's emergency order authority, which is coextensive with FRA's statutory jurisdiction over all railroads."
Note - Each applicable section regarding "non insular" tourist railroads would have to be read regarding the applicability of narrow gauge tourist operations.