Contents== Introduction to ATC Working Position ==1 Section [1]=== ATC Position AND Abbreviation ===1.1 Subsection [1.1]=== Working Positions in Tower (TWR) ===2 Section [2]=== Radar Working Positions in Air Traffic Control Center (ATCC)===2.1 Subsection [2.1]3 Section [3]3.1 Subsection [3.1]3.1.1 Subsubsection [3.1.1]3.1.2 Subsubsection [3.1.2]_TOC_