HarborFacilities
OTARU
HARBOR FACILITIES
Although pilotage is not mandatory, the use of harbor pilots is recommended when entering and leaving the port. Otaru harbor has two 2,600 hp tug boats available for use. No significant ship repair facilities exist at the port, but emergency deck engine and electrical repairs can be arranged.
Source: http://www.nrlmry.navy.mil/port_studies/thh-nc/japan/otaru/text/sect3.htm