Любые изменения и дополнения по нас

Любые изменения и дополнения по настоящему договору считаются действительными только в письменной форме и за подписью обеих Сторон.

Results (English) 1:

Any changes or additions to the present contract are valid only in writing and signed by both parties.

Results (English) 2:

Any changes or additions to this contract shall be valid only in writing and signed by both parties.

Results (English) 3:

Any changes or additions to this Agreement shall be deemed to be valid only in writing and signed by both parties.