To my knowledge their is no specific ADR for bullbars, only that they must comply with ADR 69 (Full Frontal Impact Occupant Protection) if the method of deploying the air bags is effected.
As far as the bars width goes; from memory yes it is supposed to but I can't find the reference, so could be wrong? Will look later.
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2000 TJ with stuff
1949 Willy's CJ3A, with Koenig twin-stick dual output PTO - Project 'Farm Jeep'
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