{"operation":"document","citation":"49 CFR 193.2917","title":"Warning signs.","source_type":"regulation","agency":"Pipeline and Hazardous Materials Safety Administration","status":"current","official":true,"published_on":null,"effective_on":"2026-08-18","summary":"(a) Warning signs must be conspicuously placed along each protective enclosure at intervals so that at least one sign is recognizable at night from a distance of 30m (100 ft.) from any way that could reasonably be used to approach the enclosure.\n\n(b) Signs must be marked with at least the following ","machine_formats":{"json":"https://regulus.evalyn.ai/document/49-cfr-193-2917.json","markdown":"https://regulus.evalyn.ai/document/49-cfr-193-2917.md"},"app_url":"https://regulus.evalyn.ai/document/49-cfr-193-2917","source_url":"https://www.ecfr.gov/on/2026-08-18/title-49/section-193.2917","body":"(a) Warning signs must be conspicuously placed along each protective enclosure at intervals so that at least one sign is recognizable at night from a distance of 30m (100 ft.) from any way that could reasonably be used to approach the enclosure.\n\n(b) Signs must be marked with at least the following on a background of sharply contrasting color:\n\nThe words “NO TRESPASSING,” or words of comparable meaning.\n\n[Amdt. 193-2, 45 FR 70409, Oct. 23, 1980, as amended at 47 FR 32720, July 29, 1982]","truncated":false,"body_characters":491}