diff --git a/LSL2/STPROC/SCAN_SERVICES.txt b/LSL2/STPROC/SCAN_SERVICES.txt
index 7250952..b677c03 100644
--- a/LSL2/STPROC/SCAN_SERVICES.txt
+++ b/LSL2/STPROC/SCAN_SERVICES.txt
@@ -999,33 +999,38 @@ Service ProcessScanData(ScanID, ScanJSON)
 																							LoadStageReady = ''
 																							PreStageReady  = QA_Services('PreEpiSignatureReady', RDSNo, Username, WaferQty, Reactor)
 																							If PreStageReady EQ True$ then
-																								LoadStageReady  = QA_Services('LoadSignatureReady', RDSNo, Username, WaferQty, LLSide, True$, Reactor)
-																								If (LoadStageReady NE True$) then 
-																									// Why is it not ready?
-																									ErrMsg = Error_Services('GetMessage')
-																									Begin Case
-																										Case IndexC(ErrMsg, 'supplement', 1)
-																											// Clear the error to return a JSON payload and handle the acknowledgements.
-																											Error_Services('Clear')
-																											Scan_Services('AddNotAcceptableReason', ErrMsg)
-																										Case IndexC(ErrMsg, 'ROTR', 1)
-																											ROTRBlock       = Database_Services('ReadDataColumn', 'REACTOR', Reactor, REACTOR_ROTR_STATUS$, True$, 0, False$)
-																											ROTRBlockReason = Database_Services('ReadDataColumn', 'REACTOR', Reactor, REACTOR_ROTR_STATUS_REASON$, True$, 0, False$)
-																											ROTREnabled     = Database_Services('ReadDataColumn', 'REACTOR', Reactor, REACTOR_ENABLE_ROTR$, True$, 0, False$)
-																											If ( (ROTRBlock NE 'P') AND (ROTREnabled EQ True$) ) then
-																												// Clear the error to return a JSON payload and allow for OVERRIDE scan.
-																												ScansRow<SCANS.OVERRIDE_REQD$>   = True$
-																												ScansRow<SCANS.OVERRIDE_REASON$> = ROTRBlockReason
-																												ScansRow<SCANS.OVERRIDE_TYPE$>   = 'ROTR'
+																								RDSLayerAckReq  = Xlate('RDS', RDSNo, 'RDS_LAYER_ACK_REQ', 'X')
+																								If RDSLayerAckReq EQ False$ then
+																									LoadStageReady  = QA_Services('LoadSignatureReady', RDSNo, Username, WaferQty, LLSide, True$, Reactor)
+																									If (LoadStageReady NE True$) then 
+																										// Why is it not ready?
+																										ErrMsg = Error_Services('GetMessage')
+																										Begin Case
+																											Case IndexC(ErrMsg, 'supplement', 1)
+																												// Clear the error to return a JSON payload and handle the acknowledgements.
 																												Error_Services('Clear')
-																												ErrMsg                           = ''
-																												Scan_Services('AddNotAcceptableReason', "ROTR Load Block Enabled")
-																											end else
-																												ScansRow<SCANS.OVERRIDE_REQD$>   = False$
-																												ScansRow<SCANS.OVERRIDE_REASON$> = ''
-																												ScansRow<SCANS.OVERRIDE_TYPE$>   = ''
-																											end
-																									End Case
+																												Scan_Services('AddNotAcceptableReason', ErrMsg)
+																											Case IndexC(ErrMsg, 'ROTR', 1)
+																												ROTRBlock       = Database_Services('ReadDataColumn', 'REACTOR', Reactor, REACTOR_ROTR_STATUS$, True$, 0, False$)
+																												ROTRBlockReason = Database_Services('ReadDataColumn', 'REACTOR', Reactor, REACTOR_ROTR_STATUS_REASON$, True$, 0, False$)
+																												ROTREnabled     = Database_Services('ReadDataColumn', 'REACTOR', Reactor, REACTOR_ENABLE_ROTR$, True$, 0, False$)
+																												If ( (ROTRBlock NE 'P') AND (ROTREnabled EQ True$) ) then
+																													// Clear the error to return a JSON payload and allow for OVERRIDE scan.
+																													ScansRow<SCANS.OVERRIDE_REQD$>   = True$
+																													ScansRow<SCANS.OVERRIDE_REASON$> = ROTRBlockReason
+																													ScansRow<SCANS.OVERRIDE_TYPE$>   = 'ROTR'
+																													Error_Services('Clear')
+																													ErrMsg                           = ''
+																													Scan_Services('AddNotAcceptableReason', "ROTR Load Block Enabled")
+																												end else
+																													ScansRow<SCANS.OVERRIDE_REQD$>   = False$
+																													ScansRow<SCANS.OVERRIDE_REASON$> = ''
+																													ScansRow<SCANS.OVERRIDE_TYPE$>   = ''
+																												end
+																										End Case
+																									end
+																								end else
+																									Scan_Services('AddNotAcceptableReason', 'RDS layer parameters must be reviewed for accuracy and acknowledged before the load operation can be signed.')
 																								end
 																							end else
 																								// Why is it not ready?
@@ -1113,8 +1118,7 @@ Service ProcessScanData(ScanID, ScanJSON)
 																						Scan_Services('AddNotAcceptableReason', 'The LWI stage engineering instructions must be acknowledged before the load operation can be signed.')
 																					end                                                                                                                                                                                                
 																				end else
-																					ErrMsg = 'RDS layer parameters must be reviewed for accuracy and acknowledged before the load operation can be signed.'
-																					Scan_Services('AddNotAcceptableReason', ErrMsg)
+																					Scan_Services('AddNotAcceptableReason', 'RDS layer parameters must be reviewed for accuracy and acknowledged before the load operation can be signed.')
 																				end
 																			end else
 																				ErrMsg = 'Scanned tool ':ScanTool:' does not match the scheduled tool ':SchedTool:'. (':RDSNo:')'
@@ -2420,3 +2424,4 @@ ClearCursors:
 	
 return
 
+