The CA is the Canadian version of the RN number.
People use the RN number because it gives them more flexibility in what they do with their label. Yes you are going to want to include your brand name on the label but if you can save some space by not listing some of the other info it may be to your benefit. Plus you may want to use a different name on your label for some reason and having the RN will enable you to do so. Its easy to get. Not worth worrying about.
People use the RN number because it gives them more flexibility in what they do with their label. Yes you are going to want to include your brand name on the label but if you can save some space by not listing some of the other info it may be to your benefit. Plus you may want to use a different name on your label for some reason and having the RN will enable you to do so. Its easy to get. Not worth worrying about.