How are 'special instructions' used within NORAC 100?

• A. They replace general rules permanently.
• B. They provide site-specific or temporary rules that supersede general rules when applicable.
• C. They are optional guidelines for supervisors.
• D. They only apply in non-operational hours.

Answer: (B)

Special instructions in NORAC 100 are there to address conditions that general rules don’t fit, by providing site-specific or temporary rules that apply in a particular location or situation and take precedence when they’re in effect. They cover things like yard operations, track work, temporary speed limits, or other unique factors that require a deviation from the standard rules. When a special instruction is active, crews must follow it because it overrides the general rules in that context. Once the circumstances change or the instruction expires, the general rules resume. They’re not permanent replacements and they aren’t optional for supervision; they’re active tools to ensure safety and efficiency under specific conditions.