The APA does not directly deal with the right to intervene in formal adjudication, and the standards for intervention set forth in pertinent agency statutes and rules of practice are usually vague.

• 《行政程序法》没有直接涉及正式裁决里的介入权，而有关的机关法规和活动规则所规定的介入标准通常又含糊不清。