What is the rule 11 for rail rates?

Could you please elaborate on the "rule 11 for rail rates"? I'm not immediately familiar with this specific term, and I'd like to understand its context and significance in the realm of cryptocurrency and finance. Are you referring to a regulation within the transportation industry that somehow intersects with our field, or is this a unique rule that applies specifically to a certain type of cryptocurrency transaction or service? Clarifying this point would greatly assist in providing an accurate and informative response.