If you implement any Google advertising service on a site or section of a site that is covered by the US Children's Online Privacy Protection Act (COPPA), you must:
- notify Google of those sites or sections of sites covered by COPPA using the Google Search Console, tag the ad request using the AdMob SDK , or tag your site, app or ad request for child-directed treatment;
- not use interest-based advertising (including remarketing) to target:
- past or current activity by users known by you to be under the age of 13 years or
- past or current activity on sites directed at users under the age of 13 years.