diff --git a/Kbuild b/Kbuild
index 5fae1e7d8adb..0ddd55cfa2b5 100644
--- a/Kbuild
+++ b/Kbuild
@@ -647,6 +647,7 @@ UMAC_SCAN_OBJS := $(UMAC_SCAN_CORE_DIR)/wlan_scan_cache_db.o \
 		$(UMAC_SCAN_CORE_DIR)/wlan_scan_manager.o \
 		$(UMAC_SCAN_DISP_DIR)/wlan_scan_tgt_api.o \
 		$(UMAC_SCAN_DISP_DIR)/wlan_scan_ucfg_api.o \
+		$(UMAC_SCAN_DISP_DIR)/wlan_scan_api.o \
 		$(UMAC_SCAN_DISP_DIR)/wlan_scan_utils_api.o \
 		$(WLAN_COMMON_ROOT)/os_if/linux/scan/src/wlan_cfg80211_scan.o \
 		$(WLAN_COMMON_ROOT)/os_if/linux/wlan_cfg80211.o \
diff --git a/core/hdd/inc/wlan_hdd_cfg.h b/core/hdd/inc/wlan_hdd_cfg.h
index 2db1292675bd..8bdfe18f81f1 100644
--- a/core/hdd/inc/wlan_hdd_cfg.h
+++ b/core/hdd/inc/wlan_hdd_cfg.h
@@ -3525,14 +3525,6 @@ struct hdd_config {
 	uint32_t nInitialDwellTime;     /* in units of milliseconds */
 	bool initial_scan_no_dfs_chnl;
 
-	uint32_t nPassiveMaxChnTimeConc;        /* in units of milliseconds */
-	uint32_t nActiveMaxChnTimeConc; /* in units of milliseconds */
-	uint32_t nRestTimeConc; /* in units of milliseconds */
-	/* In units of milliseconds */
-	uint32_t       min_rest_time_conc;
-	/* In units of milliseconds */
-	uint32_t       idle_time_conc;
-
 	uint8_t nRssiFilterPeriod;
 
 	uint8_t wow_data_inactivity_timeout;
diff --git a/core/hdd/src/wlan_hdd_active_tos.c b/core/hdd/src/wlan_hdd_active_tos.c
index fbcaf633933e..9d2562954fb0 100644
--- a/core/hdd/src/wlan_hdd_active_tos.c
+++ b/core/hdd/src/wlan_hdd_active_tos.c
@@ -30,6 +30,7 @@
 #include <linux/if_ether.h>
 #include <wlan_hdd_active_tos.h>
 #include "wlan_policy_mgr_ucfg.h"
+#include "wlan_scan_ucfg_api.h"
 
 /**
  * tos - Type of service requested by the application
@@ -95,6 +96,7 @@ hdd_set_limit_off_chan_for_tos(struct hdd_adapter *adapter,
 	QDF_STATUS status;
 	int ret;
 	uint8_t def_sys_pref = 0;
+	uint32_t rest_conc_time;
 
 	hdd_ctx = WLAN_HDD_GET_CTX(adapter);
 	ret = wlan_hdd_validate_context(hdd_ctx);
@@ -134,11 +136,12 @@ hdd_set_limit_off_chan_for_tos(struct hdd_adapter *adapter,
 						    def_sys_pref);
 	}
 
+	ucfg_scan_cfg_get_conc_max_resttime(hdd_ctx->psoc, &rest_conc_time);
 	status = sme_send_limit_off_channel_params(hdd_ctx->mac_handle,
 					adapter->session_id,
 					is_tos_active,
 					max_off_chan_time,
-					hdd_ctx->config->nRestTimeConc,
+					rest_conc_time,
 					true);
 	if (!QDF_IS_STATUS_SUCCESS(status)) {
 		hdd_err("failed to set limit off chan params");
diff --git a/core/hdd/src/wlan_hdd_cfg.c b/core/hdd/src/wlan_hdd_cfg.c
index 6307b5264c97..ac46c324a1e3 100644
--- a/core/hdd/src/wlan_hdd_cfg.c
+++ b/core/hdd/src/wlan_hdd_cfg.c
@@ -182,41 +182,6 @@ struct reg_table_entry g_registry_table[] = {
 		     CFG_SCAN_PROBE_REPEAT_TIME_MIN,
 		     CFG_SCAN_PROBE_REPEAT_TIME_MAX),
 
-	REG_VARIABLE(CFG_PASSIVE_MAX_CHANNEL_TIME_CONC_NAME, WLAN_PARAM_Integer,
-		     struct hdd_config, nPassiveMaxChnTimeConc,
-		     VAR_FLAGS_OPTIONAL | VAR_FLAGS_RANGE_CHECK_ASSUME_DEFAULT,
-		     CFG_PASSIVE_MAX_CHANNEL_TIME_CONC_DEFAULT,
-		     CFG_PASSIVE_MAX_CHANNEL_TIME_CONC_MIN,
-		     CFG_PASSIVE_MAX_CHANNEL_TIME_CONC_MAX),
-
-	REG_VARIABLE(CFG_ACTIVE_MAX_CHANNEL_TIME_CONC_NAME, WLAN_PARAM_Integer,
-		     struct hdd_config, nActiveMaxChnTimeConc,
-		     VAR_FLAGS_OPTIONAL | VAR_FLAGS_RANGE_CHECK_ASSUME_DEFAULT,
-		     CFG_ACTIVE_MAX_CHANNEL_TIME_CONC_DEFAULT,
-		     CFG_ACTIVE_MAX_CHANNEL_TIME_CONC_MIN,
-		     CFG_ACTIVE_MAX_CHANNEL_TIME_CONC_MAX),
-
-	REG_VARIABLE(CFG_REST_TIME_CONC_NAME, WLAN_PARAM_Integer,
-		     struct hdd_config, nRestTimeConc,
-		     VAR_FLAGS_OPTIONAL | VAR_FLAGS_RANGE_CHECK_ASSUME_DEFAULT,
-		     CFG_REST_TIME_CONC_DEFAULT,
-		     CFG_REST_TIME_CONC_MIN,
-		     CFG_REST_TIME_CONC_MAX),
-
-	REG_VARIABLE(CFG_MIN_REST_TIME_NAME, WLAN_PARAM_Integer,
-		      struct hdd_config, min_rest_time_conc,
-		      VAR_FLAGS_OPTIONAL | VAR_FLAGS_RANGE_CHECK_ASSUME_DEFAULT,
-		      CFG_MIN_REST_TIME_DEFAULT,
-		      CFG_MIN_REST_TIME_MIN,
-		      CFG_MIN_REST_TIME_MAX),
-
-	REG_VARIABLE(CFG_IDLE_TIME_NAME, WLAN_PARAM_Integer,
-		      struct hdd_config, idle_time_conc,
-		      VAR_FLAGS_OPTIONAL | VAR_FLAGS_RANGE_CHECK_ASSUME_DEFAULT,
-		      CFG_IDLE_TIME_DEFAULT,
-		      CFG_IDLE_TIME_MIN,
-		      CFG_IDLE_TIME_MAX),
-
 	REG_VARIABLE(CFG_MAX_TX_POWER_NAME, WLAN_PARAM_Integer,
 		     struct hdd_config, nTxPowerCap,
 		     VAR_FLAGS_OPTIONAL | VAR_FLAGS_RANGE_CHECK_ASSUME_DEFAULT,
@@ -2527,13 +2492,6 @@ QDF_STATUS hdd_set_sme_config(struct hdd_context *hdd_ctx)
 					pConfig->initial_scan_no_dfs_chnl;
 	smeConfig->csrConfig.nActiveMaxChnTime = pConfig->nActiveMaxChnTime;
 	smeConfig->csrConfig.nPassiveMaxChnTime = pConfig->nPassiveMaxChnTime;
-	smeConfig->csrConfig.nActiveMaxChnTimeConc =
-		pConfig->nActiveMaxChnTimeConc;
-	smeConfig->csrConfig.nPassiveMaxChnTimeConc =
-		pConfig->nPassiveMaxChnTimeConc;
-	smeConfig->csrConfig.nRestTimeConc = pConfig->nRestTimeConc;
-	smeConfig->csrConfig.min_rest_time_conc = pConfig->min_rest_time_conc;
-	smeConfig->csrConfig.idle_time_conc     = pConfig->idle_time_conc;
 	/* Remaining config params not obtained from registry
 	 * On RF EVB beacon using channel 1.
 	 */
diff --git a/core/hdd/src/wlan_hdd_ioctl.c b/core/hdd/src/wlan_hdd_ioctl.c
index 2fc82b99dd9f..bc35b99b14cc 100644
--- a/core/hdd/src/wlan_hdd_ioctl.c
+++ b/core/hdd/src/wlan_hdd_ioctl.c
@@ -42,6 +42,8 @@
 #include <sir_api.h>
 #endif
 #include "hif.h"
+#include "wlan_scan_ucfg_api.h"
+#include "cfg_ucfg_api.h"
 
 #if defined(LINUX_QCMBR)
 #define SIOCIOCTLTX99 (SIOCDEVPRIVATE+13)
@@ -2281,16 +2283,13 @@ static int hdd_conc_set_dwell_time(hdd_context_t *hdd_ctx, uint8_t *command)
 
 		value = value + 28;
 		temp = kstrtou32(value, 10, &val);
-		if (temp != 0 || val < CFG_ACTIVE_MAX_CHANNEL_TIME_CONC_MIN ||
-		    val > CFG_ACTIVE_MAX_CHANNEL_TIME_CONC_MAX) {
-			hdd_err("Argument passed for CONCSETDWELLTIME ACTIVE MAX is incorrect");
+		if (temp != 0 ||
+		    cfg_in_range(CFG_ACTIVE_MAX_CHANNEL_TIME_CONC, val)) {
+			hdd_err("CONC ACTIVE MAX value %d incorrect", val);
 			retval = -EFAULT;
 			goto sme_config_free;
 		}
-
-		p_cfg->nActiveMaxChnTimeConc = val;
-		sme_config->csrConfig.nActiveMaxChnTimeConc = val;
-		sme_update_config(mac_handle, sme_config);
+		ucfg_scan_cfg_set_conc_active_dwelltime(hdd_ctx->psoc, val);
 	} else if (strncmp(command, "CONCSETDWELLTIME PASSIVE MAX", 28) == 0) {
 		if (drv_cmd_validate(command, 28)) {
 			hdd_err("Invalid driver command");
@@ -2300,16 +2299,13 @@ static int hdd_conc_set_dwell_time(hdd_context_t *hdd_ctx, uint8_t *command)
 
 		value = value + 29;
 		temp = kstrtou32(value, 10, &val);
-		if (temp != 0 || val < CFG_PASSIVE_MAX_CHANNEL_TIME_CONC_MIN ||
-		    val > CFG_PASSIVE_MAX_CHANNEL_TIME_CONC_MAX) {
-			hdd_err("Argument passed for CONCSETDWELLTIME PASSIVE MAX is incorrect");
+		if (temp != 0 ||
+		    cfg_in_range(CFG_PASSIVE_MAX_CHANNEL_TIME_CONC, val)) {
+			hdd_err("CONC PASSIVE MAX val %d incorrect", val);
 			retval = -EFAULT;
 			goto sme_config_free;
 		}
-
-		p_cfg->nPassiveMaxChnTimeConc = val;
-		sme_config->csrConfig.nPassiveMaxChnTimeConc = val;
-		sme_update_config(mac_handle, sme_config);
+		ucfg_scan_cfg_set_conc_passive_dwelltime(hdd_ctx->psoc, val);
 	} else {
 		retval = -EINVAL;
 	}
diff --git a/core/hdd/src/wlan_hdd_main.c b/core/hdd/src/wlan_hdd_main.c
index b04d923f4a85..8c9033605608 100644
--- a/core/hdd/src/wlan_hdd_main.c
+++ b/core/hdd/src/wlan_hdd_main.c
@@ -14544,11 +14544,6 @@ static int hdd_update_scan_config(struct hdd_context *hdd_ctx)
 
 	scan_cfg.active_dwell = cfg->nActiveMaxChnTime;
 	scan_cfg.passive_dwell = cfg->nPassiveMaxChnTime;
-	scan_cfg.conc_active_dwell = cfg->nActiveMaxChnTimeConc;
-	scan_cfg.conc_passive_dwell = cfg->nPassiveMaxChnTimeConc;
-	scan_cfg.conc_max_rest_time = cfg->nRestTimeConc;
-	scan_cfg.conc_min_rest_time = cfg->min_rest_time_conc;
-	scan_cfg.conc_idle_time = cfg->idle_time_conc;
 	/* convert to ms */
 	scan_cfg.scan_cache_aging_time =
 		cfg->scanAgingTimeout * 1000;
diff --git a/core/sme/inc/csr_api.h b/core/sme/inc/csr_api.h
index 4a049dbb1e3c..39875fe8dc56 100644
--- a/core/sme/inc/csr_api.h
+++ b/core/sme/inc/csr_api.h
@@ -1039,14 +1039,6 @@ typedef struct tagCsrConfigParam {
 	uint32_t nActiveMaxChnTime;         /* in units of milliseconds */
 	uint32_t nInitialDwellTime;         /* in units of milliseconds */
 	bool initial_scan_no_dfs_chnl;
-	uint32_t nPassiveMaxChnTimeConc;    /* in units of milliseconds */
-	uint32_t nActiveMaxChnTimeConc;     /* in units of milliseconds */
-	uint32_t nRestTimeConc;             /* in units of milliseconds */
-	/*In units of milliseconds*/
-	uint32_t       min_rest_time_conc;
-	/*In units of milliseconds*/
-	uint32_t       idle_time_conc;
-
 	/*
 	 * in dBm, the maximum TX power The actual TX power is the lesser of
 	 * this value and 11d. If 11d is disable, the lesser of this and
diff --git a/core/sme/inc/csr_internal.h b/core/sme/inc/csr_internal.h
index 4acd0af84bae..413cfdb5874c 100644
--- a/core/sme/inc/csr_internal.h
+++ b/core/sme/inc/csr_internal.h
@@ -400,13 +400,6 @@ struct csr_config {
 
 	uint32_t nInitialDwellTime;     /* in units of milliseconds */
 	bool initial_scan_no_dfs_chnl;
-	uint32_t nPassiveMaxChnTimeConc;/* in units of milliseconds */
-	uint32_t nActiveMaxChnTimeConc; /* in units of milliseconds */
-	uint32_t nRestTimeConc;         /* in units of milliseconds */
-	/* In units of milliseconds */
-	uint32_t  min_rest_time_conc;
-	/* In units of milliseconds */
-	uint32_t  idle_time_conc;
 	/*
 	 * in dBm, the max TX power. The actual TX power is the lesser of this
 	 * value & 11d. If 11d is disable, the lesser of this & default setting.
diff --git a/core/sme/src/csr/csr_api_roam.c b/core/sme/src/csr/csr_api_roam.c
index fc8ea70a00d9..127ddbdab11a 100644
--- a/core/sme/src/csr/csr_api_roam.c
+++ b/core/sme/src/csr/csr_api_roam.c
@@ -1672,13 +1672,6 @@ static void init_config_param(struct mac_context *mac)
 	mac->roam.configParam.nActiveMaxChnTime = CSR_ACTIVE_MAX_CHANNEL_TIME;
 	mac->roam.configParam.nPassiveMaxChnTime =
 		CSR_PASSIVE_MAX_CHANNEL_TIME;
-	mac->roam.configParam.nActiveMaxChnTimeConc =
-		CSR_ACTIVE_MAX_CHANNEL_TIME_CONC;
-	mac->roam.configParam.nPassiveMaxChnTimeConc =
-		CSR_PASSIVE_MAX_CHANNEL_TIME_CONC;
-	mac->roam.configParam.nRestTimeConc = CSR_REST_TIME_CONC;
-	mac->roam.configParam.min_rest_time_conc =  CSR_MIN_REST_TIME_CONC;
-	mac->roam.configParam.idle_time_conc = CSR_IDLE_TIME_CONC;
 	mac->roam.configParam.nTxPowerCap = CSR_MAX_TX_POWER;
 	mac->roam.configParam.statsReqPeriodicity =
 		CSR_MIN_GLOBAL_STAT_QUERY_PERIOD;
@@ -2544,19 +2537,6 @@ QDF_STATUS csr_change_default_config_param(struct mac_context *mac,
 			cfg_set_int(mac, WNI_CFG_PASSIVE_MAXIMUM_CHANNEL_TIME,
 				    pParam->nPassiveMaxChnTime);
 		}
-		if (pParam->nActiveMaxChnTimeConc) {
-			mac->roam.configParam.nActiveMaxChnTimeConc =
-				pParam->nActiveMaxChnTimeConc;
-		}
-		if (pParam->nPassiveMaxChnTimeConc) {
-			mac->roam.configParam.nPassiveMaxChnTimeConc =
-				pParam->nPassiveMaxChnTimeConc;
-		}
-		mac->roam.configParam.nRestTimeConc = pParam->nRestTimeConc;
-		mac->roam.configParam.min_rest_time_conc =
-			pParam->min_rest_time_conc;
-		mac->roam.configParam.idle_time_conc = pParam->idle_time_conc;
-
 		mac->roam.configParam.uCfgDot11Mode =
 			csr_get_cfg_dot11_mode_from_csr_phy_mode(NULL,
 							mac->roam.configParam.
@@ -2777,11 +2757,6 @@ QDF_STATUS csr_get_config_param(struct mac_context *mac, tCsrConfigParam *pParam
 	pParam->AdHocChannel5G = cfg_params->AdHocChannel5G;
 	pParam->nActiveMaxChnTime = cfg_params->nActiveMaxChnTime;
 	pParam->nPassiveMaxChnTime = cfg_params->nPassiveMaxChnTime;
-	pParam->nActiveMaxChnTimeConc = cfg_params->nActiveMaxChnTimeConc;
-	pParam->nPassiveMaxChnTimeConc = cfg_params->nPassiveMaxChnTimeConc;
-	pParam->nRestTimeConc = cfg_params->nRestTimeConc;
-	pParam->min_rest_time_conc = cfg_params->min_rest_time_conc;
-	pParam->idle_time_conc = cfg_params->idle_time_conc;
 	pParam->nScanResultAgeCount = cfg_params->agingCount;
 	pParam->bCatRssiOffset = cfg_params->bCatRssiOffset;
 	pParam->nTxPowerCap = cfg_params->nTxPowerCap;