The Department of Infrastructure let Treasury know when it realised the cost of the new Liverpool ferry terminal would overrun by 10 per cent.
That's according to minister Tim Crookall, who faced questions in the House of Keys about the project's cost.
Ramsey MHK Lawrie Hooper asked what permission the DOI had to spend extra money on the facility.
Mr Crookall said his department had acted in line with government spending rules:
DoI upping efforts to deal with decrepit boats
Minister to meet with worried Northerners over Mountain closures
Are new sexual offences laws working?
Latest bus timetable for strike's 6th day
DfE won't give salary of Digital Isle of Man boss
You might see lots of police down South today
More bus strikes planned for March if talks fail
MER stars in TV personality's new video