You need to pass an Agenda Filter to the runRules() method that will filter which rules are allowed to run. For example.. public class MyAgendaFilter implements AgendaFilter { /** List of rule names to be allowed to fired*/ ArrayList<String> rulesToFire; public MyAgendaFilter() { rulesToFire = new ArrayList<String>(); } /** * Adds a rule to list of rules to be allowed to fire * @param name Name of rule to be fired */ public void addRuleToFire(String name) { rulesToFire.add(name); } @Override public boolean accept(Activation activation) { if (rulesToFire.contains(activation.getRule().getName())) { return true; } else { return false; } } } This can then be used as follows: AgendaFilter filter = new MyAgendaFilter(); filter.addRuleToFire("Rule Name"); StatefulKnowledgeSession knowledgeSession = kbase.newStatefulKnowledgeSession(); knowledgeSession.fireAllRules(filter); -- View this message in context: http://drools.46999.n3.nabble.com/How-to-dynamic-remove-or-add-the-rules-... Sent from the Drools: User forum mailing list archive at Nabble.com.