请帮忙分析结构：这句英语中and where relevant conform to ...之后的看不懂了,请问where在此引导的是?

请帮忙分析结构：这句英语中and where relevant conform to ...之后的看不懂了,请问where在此引导的是?
Any experiments involving animals must be demonstrated to be ethically acceptable and where relevant conform to national guidelines for animal usage in research.
where relevant只是插入语，作conform to...的状语。
那大概该怎样处理where relevant翻译的意思