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The Oil Industry Safety Directorate (OISD) under the Ministry of Petroleum and Natural Gas is the technical standard-setting body for the Indian oil and gas sector. OISD publishes safety standards, guidelines, and recommended practices that apply to refineries, petrochemical plants, LPG bottling plants, oil and gas exploration facilities, and petroleum product pipelines across India.
Safety signage is addressed in several OISD standards and guidelines, with the most relevant being OISD-GDN-192, which covers safety signs and colour codes for petroleum installations.
OISD Safety Colour Codes for Petroleum Installations
OISD standards align with IS 9457 safety colour conventions — red for danger and fire equipment, yellow for caution, green for safety and first aid, blue for mandatory actions — while adding petroleum-sector specific requirements. Pipeline identification colour codes, equipment identification colours, and hazard communication standards for petroleum products are all specified in OISD guidance.
What Safety Signage OISD Expects at Oil and Gas Facilities
OISD-aligned safety signage requirements for petroleum facilities include hazard area classification signs at entries to Zone 0, Zone 1, and Zone 2 classified areas; no smoking and no naked flame signs with defined standoff distances from flammable material storage and handling areas; equipment identification labels on all process equipment, pipelines, and valves; emergency shutdown and isolation point identification signs; PPE requirement signs at entry to process areas and maintenance zones; and fire fighting equipment location and type signs throughout the facility.
OISD Inspections and Safety Signage
OISD conducts periodic safety audits of oil and gas facilities in India. Safety signage deficiencies — missing hazard area signs, incorrect equipment identification, absent PPE requirement signs — are among the commonly cited observations in OISD audit reports. Maintaining OISD-compliant safety signage is therefore both a day-to-day safety requirement and a pre-audit preparation priority.
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