Model clause. A accession clause permitting a smooth adherence of a new party to an agreement, preventing a complete renegotiation being triggered by the accession of that party, but providing for a reasonable opportunity to raise objections against such party joining the contract.
Multi-party agreement, controlled adherence of newcomers – clause library
Model clause suitable for an NDA, allowing one or more NDA-parties to control (approve and have agree) acceding NDA-parties. It prevents that for every new party the consent of all NDA parties is required.