The phrase "active representative" is correct and usable in written English.
It can be used to describe someone who is currently engaged in representing a group, organization, or cause, often in a proactive manner.
Example: "As an active representative of the community, she regularly attends meetings and advocates for local issues."
Alternatives: "engaged representative" or "proactive representative".
Stasavage shows that active representative assemblies were more likely to be sustained in geographically small polities.
I see three things in your examples: First was creating a large, active, representative group to forge new policy directions.
A more promising compound, ICL 670A an orally active representative of a new class of iron chelators designed by computer modeling is a potent and selective iron chelator.
"Our Jewish countrymen are a recognised minority in Iran and have an active representative in the parliament," Zarif told the semi-official Tasnim news agency after his tweet in early September, according to Tehran Times.
Franz Ferdinand's assassin, Princip, is in this way the active representative of the author's own purpose: "He offered himself wholly to each event in order that he might learn in full what revelation it had to make about the nature of the universe".
None of the invited experts was an active representative of a professional organization, thus avoiding possible conflicts of interests.
The direct interaction between the planning organiser and the participant in such meetings and committees has relatively low representativeness and reliability, as the events are usually dominated by the most active representatives of communities which usually have strong impact on the feedback from other residents.
SD, could be identified thoroughly bolshevized or as active representatives of the Bolshevist ideology.
His supporters relied on him to keep the "little people" quiet while they got wealthier, and the republicans' most active representatives had to live in exile.
They are active representatives of the company and can influence people's perception of it through their ability to interact, to customize, and to build relationships with customers.
Active representatives of the Taliban were also said to be present, although two Taliban spokesmen, Zabiullah Mujahed and Qari Yousuf Ahmadi, contacted by telephone denied it and said that the Taliban was not ready to negotiate.
