diff --git a/umac/dfs/core/src/dfs_misc.h b/umac/dfs/core/src/dfs_misc.h
index efc8108ad4..c60c1a2ee1 100644
--- a/umac/dfs/core/src/dfs_misc.h
+++ b/umac/dfs/core/src/dfs_misc.h
@@ -23,6 +23,9 @@ e* copyright notice and this permission notice appear in all copies.
 #include "dfs.h"
 #include "wlan_dfs_ucfg_api.h"
 #include "wlan_lmac_if_def.h"
+#ifdef CONFIG_HOST_FIND_CHAN
+#include <wlan_reg_channel_api.h>
+#endif
 
 #ifdef QCA_SUPPORT_DFS_CHAN_POSTNOL
 /**
diff --git a/umac/dfs/core/src/misc/dfs_misc.c b/umac/dfs/core/src/misc/dfs_misc.c
index b308276ebd..117416f4f8 100644
--- a/umac/dfs/core/src/misc/dfs_misc.c
+++ b/umac/dfs/core/src/misc/dfs_misc.c
@@ -208,7 +208,7 @@ bool dfs_switch_to_postnol_chan_if_nol_expired(struct wlan_dfs *dfs)
 			dfs->dfs_chan_postnol_cfreq2);
 		return false;
 	}
-	if (WLAN_IS_CHAN_RADAR(&chan))
+	if (WLAN_IS_CHAN_RADAR(dfs, &chan))
 		return false;
 
 	if (global_dfs_to_mlme.mlme_postnol_chan_switch)
@@ -388,3 +388,47 @@ void dfs_set_nol(struct wlan_dfs *dfs,
 }
 #endif
 #endif
+
+#ifdef CONFIG_HOST_FIND_CHAN
+bool wlan_is_chan_radar(struct wlan_dfs *dfs, struct dfs_channel *chan)
+{
+	qdf_freq_t sub_freq_list[NUM_CHANNELS_160MHZ];
+	uint8_t n_subchans, i;
+
+	if (!chan || !WLAN_IS_PRIMARY_OR_SECONDARY_CHAN_DFS(chan))
+		return false;
+
+	n_subchans = dfs_get_bonding_channel_without_seg_info_for_freq(
+				chan,
+				sub_freq_list);
+
+	for (i = 0; i < n_subchans; i++) {
+		if (wlan_reg_is_nol_for_freq(dfs->dfs_pdev_obj,
+					     sub_freq_list[i]))
+			return true;
+	}
+
+	return false;
+}
+
+bool wlan_is_chan_history_radar(struct wlan_dfs *dfs, struct dfs_channel *chan)
+{
+	qdf_freq_t sub_freq_list[NUM_CHANNELS_160MHZ];
+	uint8_t n_subchans, i;
+
+	if (!chan || !WLAN_IS_PRIMARY_OR_SECONDARY_CHAN_DFS(chan))
+		return false;
+
+	n_subchans = dfs_get_bonding_channel_without_seg_info_for_freq(
+				chan,
+				sub_freq_list);
+
+	for (i = 0; i < n_subchans; i++) {
+		if (wlan_reg_is_nol_hist_for_freq(dfs->dfs_pdev_obj,
+						  sub_freq_list[i]))
+			return true;
+	}
+
+	return false;
+}
+#endif /* CONFIG_HOST_FIND_CHAN */
diff --git a/umac/regulatory/core/reg_channel.c b/umac/regulatory/core/reg_channel.c
index 26cf58c1cb..612d3447ab 100644
--- a/umac/regulatory/core/reg_channel.c
+++ b/umac/regulatory/core/reg_channel.c
@@ -336,4 +336,46 @@ bool reg_is_band_present(struct wlan_objmgr_pdev *pdev,
 	return reg_is_band_found_internal(min_chan_idx, max_chan_idx,
 					  cur_chan_list);
 }
-#endif
+#endif /* CONFIG_HOST_FIND_CHAN */
+
+bool reg_is_nol_for_freq(struct wlan_objmgr_pdev *pdev, qdf_freq_t freq)
+{
+	enum channel_enum chan_enum;
+	struct wlan_regulatory_pdev_priv_obj *pdev_priv_obj;
+
+	chan_enum = reg_get_chan_enum_for_freq(freq);
+	if (chan_enum == INVALID_CHANNEL) {
+		reg_err("chan freq is not valid");
+		return false;
+	}
+
+	pdev_priv_obj = reg_get_pdev_obj(pdev);
+
+	if (!IS_VALID_PDEV_REG_OBJ(pdev_priv_obj)) {
+		reg_err("pdev reg obj is NULL");
+		return false;
+	}
+
+	return pdev_priv_obj->cur_chan_list[chan_enum].nol_chan;
+}
+
+bool reg_is_nol_hist_for_freq(struct wlan_objmgr_pdev *pdev, qdf_freq_t freq)
+{
+	enum channel_enum chan_enum;
+	struct wlan_regulatory_pdev_priv_obj *pdev_priv_obj;
+
+	chan_enum = reg_get_chan_enum_for_freq(freq);
+	if (chan_enum == INVALID_CHANNEL) {
+		reg_err("chan freq is not valid");
+		return false;
+	}
+
+	pdev_priv_obj = reg_get_pdev_obj(pdev);
+
+	if (!IS_VALID_PDEV_REG_OBJ(pdev_priv_obj)) {
+		reg_err("pdev reg obj is NULL");
+		return false;
+	}
+
+	return pdev_priv_obj->cur_chan_list[chan_enum].nol_history;
+}
diff --git a/umac/regulatory/core/reg_channel.h b/umac/regulatory/core/reg_channel.h
index 8c17d77b06..fcb3644036 100644
--- a/umac/regulatory/core/reg_channel.h
+++ b/umac/regulatory/core/reg_channel.h
@@ -252,4 +252,22 @@ reg_is_band_present(struct wlan_objmgr_pdev *pdev, enum reg_wifi_band reg_band)
 }
 #endif /* CONFIG_HOST_FIND_CHAN */
 
+/**
+ * reg_is_nol_for_freq () - Checks the channel is a nol channel or not
+ * @pdev: pdev ptr
+ * @freq: Channel center frequency
+ *
+ * Return: true if nol channel else false.
+ */
+bool reg_is_nol_for_freq(struct wlan_objmgr_pdev *pdev, qdf_freq_t freq);
+
+/**
+ * reg_is_nol_hist_for_freq () - Checks the channel is a nol hist channel or not
+ * @pdev: pdev ptr
+ * @freq: Channel center frequency
+ *
+ * Return: true if nol channel else false.
+ */
+bool reg_is_nol_hist_for_freq(struct wlan_objmgr_pdev *pdev, qdf_freq_t freq);
+
 #endif /* __REG_CHANNEL_H_ */
diff --git a/umac/regulatory/dispatcher/inc/wlan_reg_channel_api.h b/umac/regulatory/dispatcher/inc/wlan_reg_channel_api.h
index a33b4479e4..85310791f9 100644
--- a/umac/regulatory/dispatcher/inc/wlan_reg_channel_api.h
+++ b/umac/regulatory/dispatcher/inc/wlan_reg_channel_api.h
@@ -190,4 +190,22 @@ bool wlan_reg_is_band_present(struct wlan_objmgr_pdev *pdev,
 }
 #endif /* CONFIG_HOST_FIND_CHAN */
 
+/**
+ * wlan_reg_is_nol_freq() - Checks the channel is a nol chan or not
+ * @freq: Channel center frequency
+ *
+ * Return: true if channel is nol else false
+ */
+bool wlan_reg_is_nol_for_freq(struct wlan_objmgr_pdev *pdev, qdf_freq_t freq);
+
+/**
+ * wlan_reg_is_nol_hist_for_freq() - Checks the channel is a nol history channel
+ * or not.
+ * @freq: Channel center frequency
+ *
+ * Return: true if channel is nol else false
+ */
+bool wlan_reg_is_nol_hist_for_freq(struct wlan_objmgr_pdev *pdev,
+				   qdf_freq_t freq);
+
 #endif /* __WLAN_REG_CHANNEL_API_H */
diff --git a/umac/regulatory/dispatcher/src/wlan_reg_channel_api.c b/umac/regulatory/dispatcher/src/wlan_reg_channel_api.c
index 2d986c7311..238f4f74aa 100644
--- a/umac/regulatory/dispatcher/src/wlan_reg_channel_api.c
+++ b/umac/regulatory/dispatcher/src/wlan_reg_channel_api.c
@@ -165,3 +165,14 @@ bool wlan_reg_is_band_present(struct wlan_objmgr_pdev *pdev,
 
 qdf_export_symbol(wlan_reg_is_band_present);
 #endif /* CONFIG_HOST_FIND_CHAN */
+
+bool wlan_reg_is_nol_for_freq(struct wlan_objmgr_pdev *pdev, qdf_freq_t freq)
+{
+	   return reg_is_nol_for_freq(pdev, freq);
+}
+
+bool wlan_reg_is_nol_hist_for_freq(struct wlan_objmgr_pdev *pdev,
+				   qdf_freq_t freq)
+{
+	return reg_is_nol_hist_for_freq(pdev, freq);
+}