1. A legal or contractual modification that becomes effective on a specified future date rather than immediately upon execution
The future-effective amendment to the contract will take effect on January 1st of next year.
A emenda com eficácia futura do contrato entrará em vigor em 1º de janeiro do próximo ano.
2. In corporate or legislative contexts, a change to bylaws, regulations, or agreements that is approved now but implemented at a later predetermined date
The board passed a future-effective amendment to the company's dividend policy.
O conselho aprovou uma emenda com eficácia futura na política de dividendos da empresa.