on his own accord

[Toma]

Пожалуйста, помогите перевести.

Выражение встречается в следующем контексте:
The contracting partner undertakes to inform the Bank? on his own accord, about any changes

Заранее спасибо

[Talgat]

po svoemu sobstvennomy voleizyavleniyu. although i always thought it was OF his own accord, but maybe on his own accord is british, or maltese, or whatever.

[Toma]

спасибо, значит я тоже была права, и конечно OF, это я уже вечером строчу как попало

[Snoopy]

Definitely not British (British is 'OF his own accord')