Is a first-aid kit a piece of obligatory equipment in any motor vehicle?

Description
§ 11 of the Regulation of the Minister of Infrastructure of 31 December 2002 on the technical conditions of vehicles and the scope of their necessary equipment (Journal of Laws of 2003, No. 32, item 262, as amended)
Explanation
Correct answer: No, but it's good to have it.
Not every motor vehicle must carry a first-aid kit. It is required in vehicles such as buses, taxis and learner vehicles, but not in an ordinary private passenger car. Carrying one is nevertheless advisable so you can provide first aid.