Условием получения решения было провести общественные слушания

[premature evacuation]

. The decision obtainment condition was a public hearing conductment.??

[Oo]

Сомневаюсь, но все же предложу:
We had to hold a public hearing as a condition for obtaining permission

[masizonenko]

"The permission was conditional upon/on holding public hearings."
или
"Public hearings needed to be held to secure permission."

[Redrum-wt]

In order to obtain decision (о каком решении идет речь?) it is necessary to carry out public hearings.

Public hearings should be held in order to obtain decision.