Norwegian authorities have since clarified that the colours only were an internal recommendation intended specifically for screen printing, and not a legal definition, and has since withdrawn the recommendation. The Nordic Council currently defines the red colour as "Pantone 186 C" and the blue as "Pantone 287", according to the Nordic Flag Society However, four years earlier the same website mentioned the blue colour as "Pantone 301". On 25 April 2018 the Norwegian foreign minister recommended that Norwegian flag manufacturers take initiative to form a technical standard describing a guidance on which colours to use in the flag of Norway, similar to what has been done in Denmark. It was stressed that it is the colour of the finished product that matters, and that this may result in the guide describing different colour codes for fabric, paper and web use. When raising the Norwegian flag on festive or ceremonial occasions, the hoisting will often be accompanied by a bugle call, fanfare, or the national anthem (Ja, vi elsker). For civilian use on ceremonial occasions, there are no written rules concerning this. The Norwegian armed forces have a unified bugle call for hoisting and lowering the flag, known as "flaggappell" ("Attention to the flag") "(cf. Bugle calls of the Norwegian Army). According to Norwegian Law as well as common usage, flags of other sovereign states are to be treated with the same respect as the Norwegian flag. For civilians and non-uniformed government employees, there are no formal hand gestures (e.g. the U.S. "hand-over-the-heart" gesture {cf. United States Flag Code}) that must be performed. But it is commonly agreed that during the hoisting or lowering of the flag, civilians should conduct themselves in a respectful manner by facing the flag and standing still, straight, and quiet. Males should be bareheaded (unless there are religious, medical, or climatic reasons for covering the head). All uniformed government personnel (e.g.: municipal traffic wardens, policemen, customs official, prison wardens, maritime pilots, armed forces personnel) follow the Norwegian Armed Forces regulation during flag hoisting or lowering. The regulations stipulate that when seeing the flag being hoisted or lowered, or hearing the bugle call, all activity should if possible be stopped, and personnel should execute the foot drill manoeuvre of ""Halt and front face"" (stopping up and turning one's body to face the flagpole). If a person is not in formation and is wearing a uniform hat, cap or beret, he or she must render a salute.