I agree with Debs, all paid links must be no follow, you also need to identify yourself as an Amazon associate if you sell Amazon products on your site. BUT you must not make any claims stating that Amazon supports or endoeses your site.
You can find the wording here https://affiliate-program.amazon.com/help/operating/agreement?ac-ms-src=ac-nav
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5. Identifying Yourself as an Associate
You must clearly state the following on your Site or any other location where Amazon may authorize your display or other use of Content: “We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.” Except for this disclosure, you will not make any public communication with respect to this Agreement or your participation in the Associates Program. You will not misrepresent or embellish our relationship with you (including by expressing or implying that we support, sponsor, or endorse you), or express or imply any affiliation between us and you or any other person or entity except as expressly permitted by this Agreement.
I have this on every page of my site that sells products and on my home page.
I hope that helps,