in conformity with; in accordance with; in compliance with 这

1. in conformity with sth ：following the rules of sth；conforming to sth
eg： regulations that are in conformity with European law
2. in accordance with sth (formal) ：according to a rule or the way that sb says that sth should be done
eg：in accordance with legal requirements
◆ We acted in accordance with my parents' wishes.
3. in compliance (with sth) (written) ：the practice of obeying rules or requests made by people in authority
eg：procedures that must be followed to ensure full compliance with the law
◆ Safety measures were carried out in compliance with paragraph 6 of the building regulations.
以上解释来源于牛津高阶词典,英文版.

in conformity with与…相符
in accordance with与…一致,
in compliance with 按照…
从字面上就可以区别了

in conformity with 和…相适应,和…一致[符合];遵照
eg:I acted in conformity with my principles.
我按照我的原则办事.
Bill not in conformity with agreement
单据与协议不符.
in conformity with the law of ...