An ocean going ship of 400 gross tons or above must be fitted with a standard oil discharge shore connection with dimensions outlined in Pollution Prevention Regulations (33 CFR) or be substituted with a suitable __________.
• 33 CFR oil pollution prevention requirements for oceangoing ships of 400 GT and above • MARPOL Annex I standard discharge connection table (number of bolts, bolt circle diameter, and hole size) • Difference between a permanently installed standard connection and a portable flange adapter with the same dimensions
• Look up the standard oil discharge shore connection dimensions (outside diameter, inner diameter, bolt circle diameter, and number of bolts). Which option matches those standard values? • Which answer choices can you rule out immediately based on the standard bolt circle diameter alone? • Once you know the standard number of bolts on the MARPOL/33 CFR connection, which remaining choice still matches that requirement?
• Verify the standard bolt circle diameter given in 33 CFR / MARPOL Annex I (is it closer to 83 mm or 183 mm?). • Confirm the standard number of bolts required on the oil discharge shore connection flange (compare with 4, 5, 6, or 8). • Ensure the option you choose preserves the same pattern and dimensions as the fixed standard connection, since the portable adapter is only a substitute, not a different standard.
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