The ASA states influencers are responsible for ensuring their followers are aware the post they see is an advertisement.
The Donald Trump-aligned platform is set to go live soon.
The group argues Instagram would be a challenge to the privacy and wellbeing of children.
The trend isn't new, but has recently made a resurgence on the social media platform.
The change is increasingly drawing criticism, as it throws up unintended consequences.
Comments posted this week appear to discuss whether particular classes of people make better tenants.
An adoption ad for a "demonic Chihuahua" named Prancer has gone viral.
They crashed on Friday morning.
It follows the company banning Donald Trump over the insurrectionist attack on the US Capitol.