Every IMO-mandated log book — oil, cargo, ballast, garbage, radio, radar, compass — replaced by one digital system.
Every book covered
Each book auto-validated against its source regulation.
Sample entry
Pre-filled from MACK · validated against MARPOL Annex I operation codes.
Entry
#4421
Date / Time
2026-05-18 · 14:22 UTC
Operation
D · Bunkering
Tank
FOT #3 (P) · Heavy Fuel Oil
Quantity
840 m³ · received
IMO-traceable ✓
Architectural note
OneLog ships as the records module within MACK. Also available standalone.
Explore MACKReplace the paper
One-page brief, sample entries against your real regulations, or a discovery call on class approval and flag-state acceptance.
Every IMO-mandated log book — oil, cargo, ballast, garbage, radio, radar, compass — replaced by one digital system. Class-approved. Auto-validated. Auditable. Available as a module within MACK ERP or as a standalone deployment.
Every book covered
Each book auto-validated against its source regulation. Entries signed, time-stamped, GPS-positioned. Audit trail tamper-evident at the database level.
MARPOL Annex I
Machinery-space oil operations — bunkering, sludge transfer, bilge discharge, oil filtering equipment.
MARPOL Annex I
Cargo / ballast operations on oil tankers — loading, unloading, ballasting, tank cleaning, slop discharge.
MARPOL Annex II
Noxious liquid substance operations — loading, unloading, tank cleaning, ventilation, discharge to reception.
BWM Convention
Ballast water uptake, exchange, treatment, and discharge under the Ballast Water Management Convention.
MARPOL Annex V
Garbage discharge operations for ships ≥ 100 GT — disposal, incineration, landing to reception facilities.
MARPOL Annex V
Cargo residue operations under MARPOL Annex V — solid bulk cargo residue discharges and reception.
SOLAS Ch. IV
Global Maritime Distress and Safety System events — distress calls, urgency, safety traffic, equipment tests.
SOLAS Ch. V
Radar performance and maintenance log — system tests, errors, repairs, ranges in use during watch.
SOLAS Ch. V
Compass error observations — magnetic and gyro compass deviation logs taken on each watch.
Sample entry
Pre-filled from MACK · validated against MARPOL Annex I operation codes · GPS auto-stamped · signed by responsible officer · tamper-evident audit trail.
Replace the paper
One-page brief, sample entries against your real regulations, or a discovery call on class approval and flag-state acceptance.