RADIO REPORTING (CALLING-IN) POINTS Traffic Control Centres and Maritime Information System (SICOSENARU). The River Uruguay comprises six zones run from different Control Centres from the Argentinian and Uruguayan Coast Guards in alternating semi-annual shifts. All vessels are required to report to the appropriate Centre when passing designated Reporting Points and on entering/leaving a sector. See Published Maritime Information (IMP Uruguay), Uruguayan Coast Guard, chapter VI, section 2-4 for further details. 
This cell is included in Zone WHISKY. 

ZONE WHISKY: Km 270 - 368
1st shift (Jan 1 - Jun 30): Salto Pprefectura Radio (CWC37)
2nd shift (Jul 1 - Dec 31): Concordia Prefectura Naval Radio (L9C)