diff --git a/config/nrfconnect/chip-module/Kconfig b/config/nrfconnect/chip-module/Kconfig
index 2fe7f24571eaff..6550dca841b51e 100644
--- a/config/nrfconnect/chip-module/Kconfig
+++ b/config/nrfconnect/chip-module/Kconfig
@@ -254,4 +254,24 @@ config CHIP_DEVICE_ROTATING_DEVICE_UID
 	  A device rotating id unique id which will be generated if
 	  this config is not set in prj.conf file.
 
+config CHIP_CERTIFICATION_DECLARATION_STORAGE
+	bool "Enable storing Certification Declaration"
+	depends on CHIP_FACTORY_DATA
+	help
+	  Enables storing Certification Declaration in Zephyr settings
+	  instead of using hardcoded value from firmware. It also adds
+	  support for including new Certification Declaration into a firmware
+	  update image package sent via OTA Software Update.
+
+if CHIP_CERTIFICATION_DECLARATION_STORAGE
+
+config CHIP_CERTIFiCATION_DECLARATION_OTA_IMAGE_ID
+	int "Certification declaration OTA image id"
+	default 205 #0xcd
+	help
+	  The image id of Certification Declaration image
+	  for sending it via OTA Software Update purposes.
+
+endif
+
 endif
diff --git a/src/platform/Zephyr/ZephyrConfig.cpp b/src/platform/Zephyr/ZephyrConfig.cpp
index 72b2ab201fca8e..60a17788a3cff0 100644
--- a/src/platform/Zephyr/ZephyrConfig.cpp
+++ b/src/platform/Zephyr/ZephyrConfig.cpp
@@ -49,18 +49,19 @@ namespace Internal {
 #define NAMESPACE_COUNTERS CHIP_DEVICE_CONFIG_SETTINGS_KEY "/ctr/"
 
 // Keys stored in the chip factory nam
-const ZephyrConfig::Key ZephyrConfig::kConfigKey_SerialNum             = CONFIG_KEY(NAMESPACE_FACTORY "serial-num");
-const ZephyrConfig::Key ZephyrConfig::kConfigKey_MfrDeviceId           = CONFIG_KEY(NAMESPACE_FACTORY "device-id");
-const ZephyrConfig::Key ZephyrConfig::kConfigKey_MfrDeviceCert         = CONFIG_KEY(NAMESPACE_FACTORY "device-cert");
-const ZephyrConfig::Key ZephyrConfig::kConfigKey_MfrDeviceICACerts     = CONFIG_KEY(NAMESPACE_FACTORY "device-ca-certs");
-const ZephyrConfig::Key ZephyrConfig::kConfigKey_MfrDevicePrivateKey   = CONFIG_KEY(NAMESPACE_FACTORY "device-key");
-const ZephyrConfig::Key ZephyrConfig::kConfigKey_HardwareVersion       = CONFIG_KEY(NAMESPACE_FACTORY "hardware-ver");
-const ZephyrConfig::Key ZephyrConfig::kConfigKey_ManufacturingDate     = CONFIG_KEY(NAMESPACE_FACTORY "mfg-date");
-const ZephyrConfig::Key ZephyrConfig::kConfigKey_SetupPinCode          = CONFIG_KEY(NAMESPACE_FACTORY "pin-code");
-const ZephyrConfig::Key ZephyrConfig::kConfigKey_SetupDiscriminator    = CONFIG_KEY(NAMESPACE_FACTORY "discriminator");
-const ZephyrConfig::Key ZephyrConfig::kConfigKey_Spake2pIterationCount = CONFIG_KEY(NAMESPACE_FACTORY "iteration-count");
-const ZephyrConfig::Key ZephyrConfig::kConfigKey_Spake2pSalt           = CONFIG_KEY(NAMESPACE_FACTORY "salt");
-const ZephyrConfig::Key ZephyrConfig::kConfigKey_Spake2pVerifier       = CONFIG_KEY(NAMESPACE_FACTORY "verifier");
+const ZephyrConfig::Key ZephyrConfig::kConfigKey_SerialNum                = CONFIG_KEY(NAMESPACE_FACTORY "serial-num");
+const ZephyrConfig::Key ZephyrConfig::kConfigKey_MfrDeviceId              = CONFIG_KEY(NAMESPACE_FACTORY "device-id");
+const ZephyrConfig::Key ZephyrConfig::kConfigKey_MfrDeviceCert            = CONFIG_KEY(NAMESPACE_FACTORY "device-cert");
+const ZephyrConfig::Key ZephyrConfig::kConfigKey_MfrDeviceICACerts        = CONFIG_KEY(NAMESPACE_FACTORY "device-ca-certs");
+const ZephyrConfig::Key ZephyrConfig::kConfigKey_MfrDevicePrivateKey      = CONFIG_KEY(NAMESPACE_FACTORY "device-key");
+const ZephyrConfig::Key ZephyrConfig::kConfigKey_HardwareVersion          = CONFIG_KEY(NAMESPACE_FACTORY "hardware-ver");
+const ZephyrConfig::Key ZephyrConfig::kConfigKey_ManufacturingDate        = CONFIG_KEY(NAMESPACE_FACTORY "mfg-date");
+const ZephyrConfig::Key ZephyrConfig::kConfigKey_SetupPinCode             = CONFIG_KEY(NAMESPACE_FACTORY "pin-code");
+const ZephyrConfig::Key ZephyrConfig::kConfigKey_SetupDiscriminator       = CONFIG_KEY(NAMESPACE_FACTORY "discriminator");
+const ZephyrConfig::Key ZephyrConfig::kConfigKey_Spake2pIterationCount    = CONFIG_KEY(NAMESPACE_FACTORY "iteration-count");
+const ZephyrConfig::Key ZephyrConfig::kConfigKey_Spake2pSalt              = CONFIG_KEY(NAMESPACE_FACTORY "salt");
+const ZephyrConfig::Key ZephyrConfig::kConfigKey_Spake2pVerifier          = CONFIG_KEY(NAMESPACE_FACTORY "verifier");
+const ZephyrConfig::Key ZephyrConfig::kConfigKey_CertificationDeclaration = CONFIG_KEY(NAMESPACE_FACTORY "cert-declaration");
 // Keys stored in the chip config namespace
 // NOTE: update sAllResettableConfigKeys definition when adding a new entry below
 const ZephyrConfig::Key ZephyrConfig::kConfigKey_ServiceConfig      = CONFIG_KEY(NAMESPACE_CONFIG "service-config");
diff --git a/src/platform/Zephyr/ZephyrConfig.h b/src/platform/Zephyr/ZephyrConfig.h
index bf18c131965125..b451d0c13997e9 100644
--- a/src/platform/Zephyr/ZephyrConfig.h
+++ b/src/platform/Zephyr/ZephyrConfig.h
@@ -23,7 +23,8 @@
 
 #pragma once
 
-#include <platform/internal/CHIPDeviceLayerInternal.h>
+#include <lib/core/CHIPError.h>
+#include <platform/PersistedStorage.h>
 
 namespace chip {
 namespace DeviceLayer {
@@ -63,6 +64,7 @@ class ZephyrConfig
     static const Key kConfigKey_Spake2pIterationCount;
     static const Key kConfigKey_Spake2pSalt;
     static const Key kConfigKey_Spake2pVerifier;
+    static const Key kConfigKey_CertificationDeclaration;
 
     static const Key kCounterKey_RebootCount;
     static const Key kCounterKey_BootReason;
diff --git a/src/platform/nrfconnect/BUILD.gn b/src/platform/nrfconnect/BUILD.gn
index e95a2742eb6f75..928c3c045b4725 100644
--- a/src/platform/nrfconnect/BUILD.gn
+++ b/src/platform/nrfconnect/BUILD.gn
@@ -49,7 +49,11 @@ static_library("nrfconnect") {
     "SystemPlatformConfig.h",
   ]
 
-  public = [ "${chip_root}/src/credentials/DeviceAttestationCredsProvider.h" ]
+  public = [
+    "${chip_root}/src/credentials/CHIPCert.h",
+    "${chip_root}/src/credentials/CertificationDeclaration.h",
+    "${chip_root}/src/credentials/DeviceAttestationCredsProvider.h",
+  ]
 
   public_deps = [ "${chip_root}/src/platform:platform_base" ]
 
diff --git a/src/platform/nrfconnect/CHIPDevicePlatformConfig.h b/src/platform/nrfconnect/CHIPDevicePlatformConfig.h
index 73919004875c82..087b06bdcabbc5 100644
--- a/src/platform/nrfconnect/CHIPDevicePlatformConfig.h
+++ b/src/platform/nrfconnect/CHIPDevicePlatformConfig.h
@@ -124,6 +124,58 @@
 #endif // !defined(CONFIG_CHIP_MALLOC_SYS_HEAP) && defined(CONFIG_NEWLIB_LIBC)
 #endif // CHIP_DEVICE_CONFIG_HEAP_STATISTICS_MALLINFO
 
+#ifndef CHIP_DEVICE_CONFIG_CERTIFICATION_DECLARATION
+//-> format_version = 1
+//-> vendor_id = 0xFFF1
+//-> product_id_array = [ 0x8000, 0x8001, 0x8002, 0x8003, 0x8004, 0x8005, 0x8006, 0x8007, 0x8008, 0x8009, 0x800A, 0x800B,
+// 0x800C, 0x800D, 0x800E, 0x800F, 0x8010, 0x8011, 0x8012, 0x8013, 0x8014, 0x8015, 0x8016, 0x8017, 0x8018, 0x8019, 0x801A,
+// 0x801B, 0x801C, 0x801D, 0x801E, 0x801F, 0x8020, 0x8021, 0x8022, 0x8023, 0x8024, 0x8025, 0x8026, 0x8027, 0x8028, 0x8029,
+// 0x802A, 0x802B, 0x802C, 0x802D, 0x802E, 0x802F, 0x8030, 0x8031, 0x8032, 0x8033, 0x8034, 0x8035, 0x8036, 0x8037, 0x8038,
+// 0x8039, 0x803A, 0x803B, 0x803C, 0x803D, 0x803E, 0x803F, 0x8040, 0x8041, 0x8042, 0x8043, 0x8044, 0x8045, 0x8046, 0x8047,
+// 0x8048, 0x8049, 0x804A, 0x804B, 0x804C, 0x804D, 0x804E, 0x804F, 0x8050, 0x8051, 0x8052, 0x8053, 0x8054, 0x8055, 0x8056,
+// 0x8057, 0x8058, 0x8059, 0x805A, 0x805B, 0x805C, 0x805D, 0x805E, 0x805F, 0x8060, 0x8061, 0x8062, 0x8063 ]
+//-> device_type_id = 0x0016
+//-> certificate_id = "ZIG20142ZB330003-24"
+//-> security_level = 0
+//-> security_information = 0
+//-> version_number = 0x2694
+//-> certification_type = 0
+//-> dac_origin_vendor_id is not present
+//-> dac_origin_product_id is not present
+#define CHIP_DEVICE_CONFIG_CERTIFICATION_DECLARATION                                                                               \
+    {                                                                                                                              \
+        0x30, 0x82, 0x02, 0x19, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x07, 0x02, 0xa0, 0x82, 0x02, 0x0a, 0x30,    \
+            0x82, 0x02, 0x06, 0x02, 0x01, 0x03, 0x31, 0x0d, 0x30, 0x0b, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04,      \
+            0x02, 0x01, 0x30, 0x82, 0x01, 0x71, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x07, 0x01, 0xa0, 0x82,      \
+            0x01, 0x62, 0x04, 0x82, 0x01, 0x5e, 0x15, 0x24, 0x00, 0x01, 0x25, 0x01, 0xf1, 0xff, 0x36, 0x02, 0x05, 0x00, 0x80,      \
+            0x05, 0x01, 0x80, 0x05, 0x02, 0x80, 0x05, 0x03, 0x80, 0x05, 0x04, 0x80, 0x05, 0x05, 0x80, 0x05, 0x06, 0x80, 0x05,      \
+            0x07, 0x80, 0x05, 0x08, 0x80, 0x05, 0x09, 0x80, 0x05, 0x0a, 0x80, 0x05, 0x0b, 0x80, 0x05, 0x0c, 0x80, 0x05, 0x0d,      \
+            0x80, 0x05, 0x0e, 0x80, 0x05, 0x0f, 0x80, 0x05, 0x10, 0x80, 0x05, 0x11, 0x80, 0x05, 0x12, 0x80, 0x05, 0x13, 0x80,      \
+            0x05, 0x14, 0x80, 0x05, 0x15, 0x80, 0x05, 0x16, 0x80, 0x05, 0x17, 0x80, 0x05, 0x18, 0x80, 0x05, 0x19, 0x80, 0x05,      \
+            0x1a, 0x80, 0x05, 0x1b, 0x80, 0x05, 0x1c, 0x80, 0x05, 0x1d, 0x80, 0x05, 0x1e, 0x80, 0x05, 0x1f, 0x80, 0x05, 0x20,      \
+            0x80, 0x05, 0x21, 0x80, 0x05, 0x22, 0x80, 0x05, 0x23, 0x80, 0x05, 0x24, 0x80, 0x05, 0x25, 0x80, 0x05, 0x26, 0x80,      \
+            0x05, 0x27, 0x80, 0x05, 0x28, 0x80, 0x05, 0x29, 0x80, 0x05, 0x2a, 0x80, 0x05, 0x2b, 0x80, 0x05, 0x2c, 0x80, 0x05,      \
+            0x2d, 0x80, 0x05, 0x2e, 0x80, 0x05, 0x2f, 0x80, 0x05, 0x30, 0x80, 0x05, 0x31, 0x80, 0x05, 0x32, 0x80, 0x05, 0x33,      \
+            0x80, 0x05, 0x34, 0x80, 0x05, 0x35, 0x80, 0x05, 0x36, 0x80, 0x05, 0x37, 0x80, 0x05, 0x38, 0x80, 0x05, 0x39, 0x80,      \
+            0x05, 0x3a, 0x80, 0x05, 0x3b, 0x80, 0x05, 0x3c, 0x80, 0x05, 0x3d, 0x80, 0x05, 0x3e, 0x80, 0x05, 0x3f, 0x80, 0x05,      \
+            0x40, 0x80, 0x05, 0x41, 0x80, 0x05, 0x42, 0x80, 0x05, 0x43, 0x80, 0x05, 0x44, 0x80, 0x05, 0x45, 0x80, 0x05, 0x46,      \
+            0x80, 0x05, 0x47, 0x80, 0x05, 0x48, 0x80, 0x05, 0x49, 0x80, 0x05, 0x4a, 0x80, 0x05, 0x4b, 0x80, 0x05, 0x4c, 0x80,      \
+            0x05, 0x4d, 0x80, 0x05, 0x4e, 0x80, 0x05, 0x4f, 0x80, 0x05, 0x50, 0x80, 0x05, 0x51, 0x80, 0x05, 0x52, 0x80, 0x05,      \
+            0x53, 0x80, 0x05, 0x54, 0x80, 0x05, 0x55, 0x80, 0x05, 0x56, 0x80, 0x05, 0x57, 0x80, 0x05, 0x58, 0x80, 0x05, 0x59,      \
+            0x80, 0x05, 0x5a, 0x80, 0x05, 0x5b, 0x80, 0x05, 0x5c, 0x80, 0x05, 0x5d, 0x80, 0x05, 0x5e, 0x80, 0x05, 0x5f, 0x80,      \
+            0x05, 0x60, 0x80, 0x05, 0x61, 0x80, 0x05, 0x62, 0x80, 0x05, 0x63, 0x80, 0x18, 0x24, 0x03, 0x16, 0x2c, 0x04, 0x13,      \
+            0x5a, 0x49, 0x47, 0x32, 0x30, 0x31, 0x34, 0x32, 0x5a, 0x42, 0x33, 0x33, 0x30, 0x30, 0x30, 0x33, 0x2d, 0x32, 0x34,      \
+            0x24, 0x05, 0x00, 0x24, 0x06, 0x00, 0x25, 0x07, 0x94, 0x26, 0x24, 0x08, 0x00, 0x18, 0x31, 0x7d, 0x30, 0x7b, 0x02,      \
+            0x01, 0x03, 0x80, 0x14, 0x62, 0xfa, 0x82, 0x33, 0x59, 0xac, 0xfa, 0xa9, 0x96, 0x3e, 0x1c, 0xfa, 0x14, 0x0a, 0xdd,      \
+            0xf5, 0x04, 0xf3, 0x71, 0x60, 0x30, 0x0b, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x01, 0x30,      \
+            0x0a, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x02, 0x04, 0x47, 0x30, 0x45, 0x02, 0x20, 0x24, 0xe5,      \
+            0xd1, 0xf4, 0x7a, 0x7d, 0x7b, 0x0d, 0x20, 0x6a, 0x26, 0xef, 0x69, 0x9b, 0x7c, 0x97, 0x57, 0xb7, 0x2d, 0x46, 0x90,      \
+            0x89, 0xde, 0x31, 0x92, 0xe6, 0x78, 0xc7, 0x45, 0xe7, 0xf6, 0x0c, 0x02, 0x21, 0x00, 0xf8, 0xaa, 0x2f, 0xa7, 0x11,      \
+            0xfc, 0xb7, 0x9b, 0x97, 0xe3, 0x97, 0xce, 0xda, 0x66, 0x7b, 0xae, 0x46, 0x4e, 0x2b, 0xd3, 0xff, 0xdf, 0xc3, 0xcc,      \
+            0xed, 0x7a, 0xa8, 0xca, 0x5f, 0x4c, 0x1a, 0x7c                                                                         \
+    }
+#endif
+
 // ========== Platform-specific Configuration Overrides =========
 
 #ifndef CHIP_DEVICE_CONFIG_CHIP_TASK_PRIORITY
diff --git a/src/platform/nrfconnect/FactoryDataProvider.cpp b/src/platform/nrfconnect/FactoryDataProvider.cpp
index 70ca9c7436a8ac..aba9d4543028ec 100644
--- a/src/platform/nrfconnect/FactoryDataProvider.cpp
+++ b/src/platform/nrfconnect/FactoryDataProvider.cpp
@@ -19,6 +19,11 @@
 #include "CHIPDevicePlatformConfig.h"
 #include <crypto/CHIPCryptoPAL.h>
 
+#if CONFIG_CHIP_CERTIFICATION_DECLARATION_STORAGE
+#include <credentials/CertificationDeclaration.h>
+#include <platform/Zephyr/ZephyrConfig.h>
+#endif
+
 #include <logging/log.h>
 
 namespace chip {
@@ -84,53 +89,18 @@ CHIP_ERROR FactoryDataProvider<FlashFactoryData>::Init()
 template <class FlashFactoryData>
 CHIP_ERROR FactoryDataProvider<FlashFactoryData>::GetCertificationDeclaration(MutableByteSpan & outBuffer)
 {
-    //-> format_version = 1
-    //-> vendor_id = 0xFFF1
-    //-> product_id_array = [ 0x8000, 0x8001, 0x8002, 0x8003, 0x8004, 0x8005, 0x8006, 0x8007, 0x8008, 0x8009, 0x800A, 0x800B,
-    // 0x800C, 0x800D, 0x800E, 0x800F, 0x8010, 0x8011, 0x8012, 0x8013, 0x8014, 0x8015, 0x8016, 0x8017, 0x8018, 0x8019, 0x801A,
-    // 0x801B, 0x801C, 0x801D, 0x801E, 0x801F, 0x8020, 0x8021, 0x8022, 0x8023, 0x8024, 0x8025, 0x8026, 0x8027, 0x8028, 0x8029,
-    // 0x802A, 0x802B, 0x802C, 0x802D, 0x802E, 0x802F, 0x8030, 0x8031, 0x8032, 0x8033, 0x8034, 0x8035, 0x8036, 0x8037, 0x8038,
-    // 0x8039, 0x803A, 0x803B, 0x803C, 0x803D, 0x803E, 0x803F, 0x8040, 0x8041, 0x8042, 0x8043, 0x8044, 0x8045, 0x8046, 0x8047,
-    // 0x8048, 0x8049, 0x804A, 0x804B, 0x804C, 0x804D, 0x804E, 0x804F, 0x8050, 0x8051, 0x8052, 0x8053, 0x8054, 0x8055, 0x8056,
-    // 0x8057, 0x8058, 0x8059, 0x805A, 0x805B, 0x805C, 0x805D, 0x805E, 0x805F, 0x8060, 0x8061, 0x8062, 0x8063 ]
-    //-> device_type_id = 0x0016
-    //-> certificate_id = "ZIG20142ZB330003-24"
-    //-> security_level = 0
-    //-> security_information = 0
-    //-> version_number = 0x2694
-    //-> certification_type = 0
-    //-> dac_origin_vendor_id is not present
-    //-> dac_origin_product_id is not present
-    const uint8_t kCdForAllExamples[541] = {
-        0x30, 0x82, 0x02, 0x19, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x07, 0x02, 0xa0, 0x82, 0x02, 0x0a, 0x30,
-        0x82, 0x02, 0x06, 0x02, 0x01, 0x03, 0x31, 0x0d, 0x30, 0x0b, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02,
-        0x01, 0x30, 0x82, 0x01, 0x71, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x07, 0x01, 0xa0, 0x82, 0x01, 0x62,
-        0x04, 0x82, 0x01, 0x5e, 0x15, 0x24, 0x00, 0x01, 0x25, 0x01, 0xf1, 0xff, 0x36, 0x02, 0x05, 0x00, 0x80, 0x05, 0x01, 0x80,
-        0x05, 0x02, 0x80, 0x05, 0x03, 0x80, 0x05, 0x04, 0x80, 0x05, 0x05, 0x80, 0x05, 0x06, 0x80, 0x05, 0x07, 0x80, 0x05, 0x08,
-        0x80, 0x05, 0x09, 0x80, 0x05, 0x0a, 0x80, 0x05, 0x0b, 0x80, 0x05, 0x0c, 0x80, 0x05, 0x0d, 0x80, 0x05, 0x0e, 0x80, 0x05,
-        0x0f, 0x80, 0x05, 0x10, 0x80, 0x05, 0x11, 0x80, 0x05, 0x12, 0x80, 0x05, 0x13, 0x80, 0x05, 0x14, 0x80, 0x05, 0x15, 0x80,
-        0x05, 0x16, 0x80, 0x05, 0x17, 0x80, 0x05, 0x18, 0x80, 0x05, 0x19, 0x80, 0x05, 0x1a, 0x80, 0x05, 0x1b, 0x80, 0x05, 0x1c,
-        0x80, 0x05, 0x1d, 0x80, 0x05, 0x1e, 0x80, 0x05, 0x1f, 0x80, 0x05, 0x20, 0x80, 0x05, 0x21, 0x80, 0x05, 0x22, 0x80, 0x05,
-        0x23, 0x80, 0x05, 0x24, 0x80, 0x05, 0x25, 0x80, 0x05, 0x26, 0x80, 0x05, 0x27, 0x80, 0x05, 0x28, 0x80, 0x05, 0x29, 0x80,
-        0x05, 0x2a, 0x80, 0x05, 0x2b, 0x80, 0x05, 0x2c, 0x80, 0x05, 0x2d, 0x80, 0x05, 0x2e, 0x80, 0x05, 0x2f, 0x80, 0x05, 0x30,
-        0x80, 0x05, 0x31, 0x80, 0x05, 0x32, 0x80, 0x05, 0x33, 0x80, 0x05, 0x34, 0x80, 0x05, 0x35, 0x80, 0x05, 0x36, 0x80, 0x05,
-        0x37, 0x80, 0x05, 0x38, 0x80, 0x05, 0x39, 0x80, 0x05, 0x3a, 0x80, 0x05, 0x3b, 0x80, 0x05, 0x3c, 0x80, 0x05, 0x3d, 0x80,
-        0x05, 0x3e, 0x80, 0x05, 0x3f, 0x80, 0x05, 0x40, 0x80, 0x05, 0x41, 0x80, 0x05, 0x42, 0x80, 0x05, 0x43, 0x80, 0x05, 0x44,
-        0x80, 0x05, 0x45, 0x80, 0x05, 0x46, 0x80, 0x05, 0x47, 0x80, 0x05, 0x48, 0x80, 0x05, 0x49, 0x80, 0x05, 0x4a, 0x80, 0x05,
-        0x4b, 0x80, 0x05, 0x4c, 0x80, 0x05, 0x4d, 0x80, 0x05, 0x4e, 0x80, 0x05, 0x4f, 0x80, 0x05, 0x50, 0x80, 0x05, 0x51, 0x80,
-        0x05, 0x52, 0x80, 0x05, 0x53, 0x80, 0x05, 0x54, 0x80, 0x05, 0x55, 0x80, 0x05, 0x56, 0x80, 0x05, 0x57, 0x80, 0x05, 0x58,
-        0x80, 0x05, 0x59, 0x80, 0x05, 0x5a, 0x80, 0x05, 0x5b, 0x80, 0x05, 0x5c, 0x80, 0x05, 0x5d, 0x80, 0x05, 0x5e, 0x80, 0x05,
-        0x5f, 0x80, 0x05, 0x60, 0x80, 0x05, 0x61, 0x80, 0x05, 0x62, 0x80, 0x05, 0x63, 0x80, 0x18, 0x24, 0x03, 0x16, 0x2c, 0x04,
-        0x13, 0x5a, 0x49, 0x47, 0x32, 0x30, 0x31, 0x34, 0x32, 0x5a, 0x42, 0x33, 0x33, 0x30, 0x30, 0x30, 0x33, 0x2d, 0x32, 0x34,
-        0x24, 0x05, 0x00, 0x24, 0x06, 0x00, 0x25, 0x07, 0x94, 0x26, 0x24, 0x08, 0x00, 0x18, 0x31, 0x7d, 0x30, 0x7b, 0x02, 0x01,
-        0x03, 0x80, 0x14, 0x62, 0xfa, 0x82, 0x33, 0x59, 0xac, 0xfa, 0xa9, 0x96, 0x3e, 0x1c, 0xfa, 0x14, 0x0a, 0xdd, 0xf5, 0x04,
-        0xf3, 0x71, 0x60, 0x30, 0x0b, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x01, 0x30, 0x0a, 0x06, 0x08,
-        0x2a, 0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x02, 0x04, 0x47, 0x30, 0x45, 0x02, 0x20, 0x24, 0xe5, 0xd1, 0xf4, 0x7a, 0x7d,
-        0x7b, 0x0d, 0x20, 0x6a, 0x26, 0xef, 0x69, 0x9b, 0x7c, 0x97, 0x57, 0xb7, 0x2d, 0x46, 0x90, 0x89, 0xde, 0x31, 0x92, 0xe6,
-        0x78, 0xc7, 0x45, 0xe7, 0xf6, 0x0c, 0x02, 0x21, 0x00, 0xf8, 0xaa, 0x2f, 0xa7, 0x11, 0xfc, 0xb7, 0x9b, 0x97, 0xe3, 0x97,
-        0xce, 0xda, 0x66, 0x7b, 0xae, 0x46, 0x4e, 0x2b, 0xd3, 0xff, 0xdf, 0xc3, 0xcc, 0xed, 0x7a, 0xa8, 0xca, 0x5f, 0x4c, 0x1a,
-        0x7c,
-    };
+#if CONFIG_CHIP_CERTIFICATION_DECLARATION_STORAGE
+    size_t cdLen = 0;
+
+    if (Internal::ZephyrConfig::ReadConfigValueBin(Internal::ZephyrConfig::kConfigKey_CertificationDeclaration,
+                                                   reinterpret_cast<uint8_t *>(outBuffer.data()), outBuffer.size(),
+                                                   cdLen) == CHIP_NO_ERROR)
+    {
+        outBuffer.reduce_size(cdLen);
+        return CHIP_NO_ERROR;
+    }
+#endif
+    constexpr uint8_t kCdForAllExamples[] = CHIP_DEVICE_CONFIG_CERTIFICATION_DECLARATION;
 
     return CopySpanToMutableSpan(ByteSpan{ kCdForAllExamples }, outBuffer);
 }
diff --git a/src/platform/nrfconnect/OTAImageProcessorImpl.cpp b/src/platform/nrfconnect/OTAImageProcessorImpl.cpp
index 016395aa8ec63e..b558906258e994 100644
--- a/src/platform/nrfconnect/OTAImageProcessorImpl.cpp
+++ b/src/platform/nrfconnect/OTAImageProcessorImpl.cpp
@@ -23,6 +23,12 @@
 #include <platform/CHIPDeviceLayer.h>
 #include <system/SystemError.h>
 
+#if CONFIG_CHIP_CERTIFICATION_DECLARATION_STORAGE
+#include <credentials/CertificationDeclaration.h>
+#include <platform/Zephyr/ZephyrConfig.h>
+#include <settings/settings.h>
+#endif
+
 #include <dfu/dfu_multi_image.h>
 #include <dfu/dfu_target.h>
 #include <dfu/dfu_target_mcuboot.h>
@@ -31,6 +37,14 @@
 #include <pm/device.h>
 #include <sys/reboot.h>
 
+#if CONFIG_CHIP_CERTIFICATION_DECLARATION_STORAGE
+// Cd globals are needed to be accessed from dfu image writer lambdas
+namespace {
+uint8_t sCdBuf[chip::Credentials::kMaxCMSSignedCDMessage] = { 0 };
+size_t sCdSavedBytes                                      = 0;
+} // namespace
+#endif
+
 namespace chip {
 namespace DeviceLayer {
 
@@ -61,6 +75,22 @@ CHIP_ERROR OTAImageProcessorImpl::PrepareDownloadImpl()
         ReturnErrorOnFailure(System::MapErrorZephyr(dfu_multi_image_register_writer(&writer)));
     };
 
+#if CONFIG_CHIP_CERTIFICATION_DECLARATION_STORAGE
+    dfu_image_writer cdWriter;
+    cdWriter.image_id = CONFIG_CHIP_CERTIFiCATION_DECLARATION_OTA_IMAGE_ID;
+    cdWriter.open     = [](int id, size_t size) { return size <= sizeof(sCdBuf) ? 0 : -EFBIG; };
+    cdWriter.write    = [](const uint8_t * chunk, size_t chunk_size) {
+        memcpy(&sCdBuf[sCdSavedBytes], chunk, chunk_size);
+        sCdSavedBytes += chunk_size;
+        return 0;
+    };
+    cdWriter.close = [](bool success) {
+        return settings_save_one(Internal::ZephyrConfig::kConfigKey_CertificationDeclaration, sCdBuf, sCdSavedBytes);
+    };
+
+    ReturnErrorOnFailure(System::MapErrorZephyr(dfu_multi_image_register_writer(&cdWriter)));
+#endif
+
     return CHIP_NO_ERROR;
 }