stipulation
US /ˌstɪp.jəˈleɪ.ʃən/
UK /ˌstɪp.jəˈleɪ.ʃən/

1.
a condition or requirement that is specified or demanded as part of an agreement
:
•
One of the stipulations of the contract was that the work must be completed by next month.
•
The agreement included a stipulation for a penalty if deadlines were missed.