noun
supplementary item; ancillary matter
Used in formal or official contexts for an additional item, condition, or clause attached to a main agreement, document, or plan.
契約書には付帯事項として、解約条件が明記されている。
The contract clearly states the cancellation conditions as a supplementary item.
付帯条件 specifically refers to an attached condition or proviso, while 付帯事項 is a broader term for any supplementary matter.
Compound of 付帯 (futai, 'incidental' or 'attached') and 事項 (jikō, 'matter' or 'item').