If a traffic type is specified as allowed, the publisher can promote the program through the ad space, appropriate for this traffic type and specified during connection, without any limitation but in compliance with other program rules. By default, allowed traffic types include content blogs, provided they do not violate country laws or publish adult content (there is a dedicated space type for Adult programs).
If a traffic type is marked forbidden, the publisher cannot use an ad space appropriate for this traffic type. If the publisher connected one ad space but drives traffic through the other, the forbidden one, the advertiser is entitled to decline actions led by the publisher and even disconnect both the space and the publisher from the program. A severe violation of the program rules may result in disconnection of the publisher from the partner network.
If a traffic type is marked "Needs approval", before launching an ad campaign, the publisher needs to show how they are going to promote the program (e.g. provide newsletter layouts or banner design they have created and plan to use).