diff --git a/src/cco-modules/AgentOntology.ttl b/src/cco-modules/AgentOntology.ttl
index 9901977..efc91c3 100644
--- a/src/cco-modules/AgentOntology.ttl
+++ b/src/cco-modules/AgentOntology.ttl
@@ -1120,6 +1120,7 @@ cco:ActionProhibition rdf:type owl:Class ;
 cco:ActionRegulation rdf:type owl:Class ;
                      rdfs:subClassOf cco:DirectiveInformationContentEntity ;
                      cco:definition "A Directive Information Content Entity that prescribes an Process as required, prohibited, or permitted, and is the output of an Process which realizes some Authority Role."@en ;
+                     cco:elucidation "Although regulations often regulate processes which involve agents--as the regulating or regulated participant--it is unclear how causally active an agents need to be in those regulated processes. For example, it is not clear how causally active a human agent is in the process of a traffic light regulating the motion of a self-driving vehicle."@en ;
                      cco:is_curated_in_ontology "http://www.ontologyrepository.com/CommonCoreOntologies/Mid/AgentOntology"^^xsd:anyURI ;
                      rdfs:label "Process Regulation"@en .