Rule reminder
Advanced formal Italian business writing uses: nominalisations (verbs converted to nouns: 'richiedere' → 'la richiesta'), complex sentence structures with subordinate clauses, impersonal passive, legal/administrative vocabulary, and precise temporal markers ('entro e non oltre', 'con decorrenza dal', 'a far data da').
Which phrase correctly expresses 'starting from 1 April' in a formal contract?