HOW TO MAKE YOUR SITE GOOGLE ADSENSE-READY
Adsense ready website
QUICK STEPS TO STAY ADSENSE COMPLIANT
Carrying a handy checklist you can use before applying for an Adsense or Ad Exchange account:
Considering click on your own, ads.
Considering ask others to click on your ads.
Involving include any prohibited site content, including adult content, violence or excessive profanity, drugs (including alcohol and tobacco), or copyrighted material.
Improving modify the AdSense code.
Going place more than 3 ad units, 3 link units, and 2 search boxes on any page. Related Read: Ad Exchange New Policy: 5 Ad Units per Page for Desktop Sites
Going place images near ads in a way that may mislead users into thinking that the images are associated with the ads.
Source: https://support.google.com/adsense/answer/1261929?hl=en&ref_topic=1261918