Regarding Identification test

Dear Sir

My query is regarding identification test mentioned in different Pharmacopoeia.If , there is a,b,c three different identification test mentioned in USP. Should we have do test sample for all identification test or we can omit any one test to comply product as per USP.
In IP general volume it is mentioned that ,we can perform one test out of two (according to my knowledge). Is same is done for USP or not ???

Please correct me on this.

You have to comply the product for all mentioned tests unless it is written to choose one or two of them.