Law Documents & ATS Instructions Here you can find the official law documents for how to control. These contains how to control, but not local procedures. For that see Local ATS instructions in the top BLs (Bestemmelser for Luftfart) BLs (Instructions for Airtraffic) is the law document for flying in Denmark instructing how to fly. It is a gathering of law documents that sets the required standards for pilots, however it is identical to ATC rules, and hence a great source of learning the correct rules. BLs will tell you: Rules concerning flying General laws concerning controlling, such as airspace, clearances, etc. General approved Phraseology ATS Instructions will NOT tell you: Local regulations Tips and tricks Anything VATSIM related Controller specific rules  There are many of these documents so we have done you a favor and included the relevant ones and highlighted all that is considered relevant for VATSIM. The documents should be studied as you are waiting to commence Pre-Training (1st Stage). Later once you start training the Pre-Training course will reference these documents from time to time.  ICAO Doc 4444 ICAO Doc 4444 is the official standard for controllers. It is a long long document which sets the required standards. Note that ATS Instructions may be more limiting than doc 4444.  It is however a pure document which notes down the basics of controlling such as separation requirements and approved clearances Doc 4444 will tell you: General rules concerning separation General laws concerning controlling Basic clearance structure ATS Instructions will NOT tell you: Phraseology Local procedures Tips and tricks Anything VATSIM related This document is very long, and mostly irrelevant for an S2 student, so we have only included the pages which are relevant. Remember that this is the "mother" document and is where it all originates from, so reading it and understanding it is a vital part of your training. The documents should be studied as you are waiting to commence Pre-Training (1st Stage). Later once you start training the Pre-Training course will reference these documents from time to time.  Full version of ICAO doc 4444 ICAO Doc 4444 Air Traffic Management.pdf VATSIM deducted version of ICAO doc 4444 DOC4444 - VATSCA version.pdf ATS Instructions All Danish ATS Instructions ATS Instruction 14 ATS Instructions is the ATC bible, instructing how to control. It is a gathering of law documents that sets the required standards.  ATS instructions will tell you: Rules concerning controlling General laws concerning controlling, such as airspace, clearances, etc. General approved Phraseology ATS Instructions will NOT tell you: Local regulations Tips and tricks Anything VATSIM related These documents are long and tedious, so we have done you a favor and highlighted all that is considered relevant for VATSIM. The documents should be studied as you are waiting to commence Pre-Training (1st Stage). Later once you start training the Pre-Training course will reference these documents from time to time.  ATS Instruction 14 in original version for danish students ATS-instruks 14 Dansk udgave.pdf ATS Instruction 14 in Google Translated version for Foreign students ATS-Instruction 14 English Version.pdf ATS Instruction 14 Appendix 1 for S2 students Appendix A - Easy VATSIM S2 access.pdf ATS Instruction 14 Appendix 1 for S3 students ATS Instruction 10 ATS-instruks 10 - 21. udg., maj 2025.pdf AIP - Denmark VFR Charts for Denmark & Copenhagen The charts are available from Naviar, DENMARK VFR CHARTS Scroll down to find the latest updated charts.