🔍 Key Concepts

• H2S (hydrogen sulfide) safety requirements on Mobile Offshore Drilling Units (MODUs) in U.S. offshore waters • Difference between a regulatory government agency and a standards-setting organization • Which U.S. agency has primary responsibility for marine safety and environmental protection offshore

💭 Think About

• First, decide which of these organizations actually has legal enforcement authority over offshore vessel and MODU safety requirements, not just guidance or recommendations. • Ask yourself: who issues and enforces federal regulations for U.S. offshore maritime operations, versus who simply develops voluntary standards? • Consider which organizations are primarily involved with engineering projects on land and rivers, versus those focused on offshore oil & gas and maritime safety.

✅ Before You Answer

• Verify which listed organization is responsible for offshore oil and gas safety regulations on the U.S. Outer Continental Shelf. • Check which of these organizations publishes voluntary standards only and does not directly enforce safety rules on MODUs. • Confirm which agency is commonly associated with maritime safety, inspections, and pollution prevention in U.S. waters.