diff --git a/phosphor-regulators/src/error_logging.cpp b/phosphor-regulators/src/error_logging.cpp
new file mode 100644
index 0000000..37f00a9
--- /dev/null
+++ b/phosphor-regulators/src/error_logging.cpp
@@ -0,0 +1,251 @@
+/**
+ * Copyright © 2020 IBM Corporation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "error_logging.hpp"
+
+#include "exception_utils.hpp"
+
+#include <errno.h>     // for errno
+#include <string.h>    // for strerror()
+#include <sys/types.h> // for getpid(), lseek(), ssize_t
+#include <unistd.h>    // for getpid(), lseek(), write()
+
+#include <sdbusplus/message.hpp>
+
+#include <exception>
+#include <ios>
+#include <sstream>
+#include <stdexcept>
+
+namespace phosphor::power::regulators
+{
+
+void DBusErrorLogging::logConfigFileError(Entry::Level severity,
+                                          Journal& journal)
+{
+    std::map<std::string, std::string> additionalData{};
+    logError("xyz.openbmc_project.Power.Regulators.Error.ConfigFile", severity,
+             additionalData, journal);
+}
+
+void DBusErrorLogging::logDBusError(Entry::Level severity, Journal& journal)
+{
+    std::map<std::string, std::string> additionalData{};
+    logError("xyz.openbmc_project.Power.Error.DBus", severity, additionalData,
+             journal);
+}
+
+void DBusErrorLogging::logI2CError(Entry::Level severity, Journal& journal,
+                                   const std::string& bus, uint8_t addr,
+                                   int errorNumber)
+{
+    // Convert I2C address to a hex string
+    std::ostringstream ss;
+    ss << "0x" << std::hex << std::uppercase << static_cast<uint16_t>(addr);
+    std::string addrStr = ss.str();
+
+    // Convert errno value to an integer string
+    std::string errorNumberStr = std::to_string(errorNumber);
+
+    std::map<std::string, std::string> additionalData{};
+    additionalData.emplace("CALLOUT_IIC_BUS", bus);
+    additionalData.emplace("CALLOUT_IIC_ADDR", addrStr);
+    additionalData.emplace("CALLOUT_ERRNO", errorNumberStr);
+    logError("xyz.openbmc_project.Power.Error.I2C", severity, additionalData,
+             journal);
+}
+
+void DBusErrorLogging::logInternalError(Entry::Level severity, Journal& journal)
+{
+    std::map<std::string, std::string> additionalData{};
+    logError("xyz.openbmc_project.Power.Error.Internal", severity,
+             additionalData, journal);
+}
+
+void DBusErrorLogging::logPMBusError(Entry::Level severity, Journal& journal,
+                                     const std::string& inventoryPath)
+{
+    // Convert relative inventory path to an absolute path
+    std::string absInventoryPath = getAbsoluteInventoryPath(inventoryPath);
+
+    std::map<std::string, std::string> additionalData{};
+    additionalData.emplace("CALLOUT_INVENTORY_PATH", absInventoryPath);
+    logError("xyz.openbmc_project.Power.Error.PMBus", severity, additionalData,
+             journal);
+}
+
+void DBusErrorLogging::logWriteVerificationError(
+    Entry::Level severity, Journal& journal, const std::string& inventoryPath)
+{
+    // Convert relative inventory path to an absolute path
+    std::string absInventoryPath = getAbsoluteInventoryPath(inventoryPath);
+
+    std::map<std::string, std::string> additionalData{};
+    additionalData.emplace("CALLOUT_INVENTORY_PATH", absInventoryPath);
+    logError("xyz.openbmc_project.Power.Regulators.Error.WriteVerification",
+             severity, additionalData, journal);
+}
+
+FFDCFile DBusErrorLogging::createFFDCFile(const std::vector<std::string>& lines)
+{
+    // Create FFDC file of type Text
+    FFDCFile file{FFDCFormat::Text};
+    int fd = file.getFileDescriptor();
+
+    // Write lines to file
+    std::string buffer;
+    for (const std::string& line : lines)
+    {
+        // Copy line to buffer.  Add newline if necessary.
+        buffer = line;
+        if (line.empty() || (line.back() != '\n'))
+        {
+            buffer += '\n';
+        }
+
+        // Write buffer to file
+        const char* bufPtr = buffer.c_str();
+        unsigned int count = buffer.size();
+        while (count > 0)
+        {
+            // Try to write remaining bytes; it might not write all of them
+            ssize_t bytesWritten = write(fd, bufPtr, count);
+            if (bytesWritten == -1)
+            {
+                throw std::runtime_error{
+                    std::string{"Unable to write to FFDC file: "} +
+                    strerror(errno)};
+            }
+            bufPtr += bytesWritten;
+            count -= bytesWritten;
+        }
+    }
+
+    // Seek to beginning of file so error logging system can read data
+    if (lseek(fd, 0, SEEK_SET) != 0)
+    {
+        throw std::runtime_error{
+            std::string{"Unable to seek within FFDC file: "} + strerror(errno)};
+    }
+
+    return file;
+}
+
+std::vector<FFDCFile> DBusErrorLogging::createFFDCFiles(Journal& journal)
+{
+    std::vector<FFDCFile> files{};
+
+    // Create FFDC files containing journal messages from relevant executables.
+    // Executables in priority order in case error log cannot hold all the FFDC.
+    std::vector<std::string> executables{"phosphor-regulators", "systemd"};
+    for (const std::string& executable : executables)
+    {
+        try
+        {
+            // Get recent journal messages from the executable
+            // TODO: Uncomment the following line and remove the temporary code
+            // when Journal::getMessages() is implemented
+            // std::vector<std::string> messages =
+            //   journal.getMessages("SYSLOG_IDENTIFIER", executable, 30);
+            std::vector<std::string> messages{
+                executable + ": journal message 1",
+                executable + ": journal message 2"};
+
+            // Create FFDC file containing the journal messages
+            if (!messages.empty())
+            {
+                files.emplace_back(createFFDCFile(messages));
+            }
+        }
+        catch (const std::exception& e)
+        {
+            journal.logError(exception_utils::getMessages(e));
+        }
+    }
+
+    return files;
+}
+
+std::vector<FFDCTuple>
+    DBusErrorLogging::createFFDCTuples(std::vector<FFDCFile>& files)
+{
+    std::vector<FFDCTuple> ffdcTuples{};
+    for (FFDCFile& file : files)
+    {
+        ffdcTuples.emplace_back(
+            file.getFormat(), file.getSubType(), file.getVersion(),
+            sdbusplus::message::unix_fd(file.getFileDescriptor()));
+    }
+    return ffdcTuples;
+}
+
+void DBusErrorLogging::logError(
+    const std::string& message, Entry::Level severity,
+    std::map<std::string, std::string>& additionalData, Journal& journal)
+{
+    try
+    {
+        // Add PID to AdditionalData
+        additionalData.emplace("_PID", std::to_string(getpid()));
+
+        // Create FFDC files containing debug data to store in error log
+        std::vector<FFDCFile> files{createFFDCFiles(journal)};
+
+        // Create FFDC tuples used to pass FFDC files to D-Bus method
+        std::vector<FFDCTuple> ffdcTuples{createFFDCTuples(files)};
+
+        // Call D-Bus method to create an error log with FFDC files
+        const char* service = "xyz.openbmc_project.Logging";
+        const char* objPath = "/xyz/openbmc_project/logging";
+        const char* interface = "xyz.openbmc_project.Logging.Create";
+        const char* method = "CreateWithFFDCFiles";
+        auto reqMsg = bus.new_method_call(service, objPath, interface, method);
+        reqMsg.append(message, severity, additionalData, ffdcTuples);
+        auto respMsg = bus.call(reqMsg);
+
+        // Remove FFDC files.  If an exception occurs before this, the files
+        // will be deleted by FFDCFile desctructor but errors will be ignored.
+        removeFFDCFiles(files, journal);
+    }
+    catch (const std::exception& e)
+    {
+        journal.logError(exception_utils::getMessages(e));
+        journal.logError("Unable to log error " + message);
+    }
+}
+
+void DBusErrorLogging::removeFFDCFiles(std::vector<FFDCFile>& files,
+                                       Journal& journal)
+{
+    // Explicitly remove FFDC files rather than relying on FFDCFile destructor.
+    // This allows any resulting errors to be written to the journal.
+    for (FFDCFile& file : files)
+    {
+        try
+        {
+            file.remove();
+        }
+        catch (const std::exception& e)
+        {
+            journal.logError(exception_utils::getMessages(e));
+        }
+    }
+
+    // Clear vector since the FFDCFile objects can no longer be used
+    files.clear();
+}
+
+} // namespace phosphor::power::regulators
diff --git a/phosphor-regulators/src/error_logging.hpp b/phosphor-regulators/src/error_logging.hpp
index ddd3b94..d1a5879 100644
--- a/phosphor-regulators/src/error_logging.hpp
+++ b/phosphor-regulators/src/error_logging.hpp
@@ -15,11 +15,26 @@
  */
 #pragma once
 
+#include "ffdc_file.hpp"
+#include "journal.hpp"
+#include "xyz/openbmc_project/Logging/Create/server.hpp"
+#include "xyz/openbmc_project/Logging/Entry/server.hpp"
+
 #include <sdbusplus/bus.hpp>
 
+#include <cstdint>
+#include <map>
+#include <string>
+#include <tuple>
+#include <vector>
+
 namespace phosphor::power::regulators
 {
 
+using namespace sdbusplus::xyz::openbmc_project::Logging::server;
+using FFDCTuple =
+    std::tuple<FFDCFormat, uint8_t, uint8_t, sdbusplus::message::unix_fd>;
+
 /**
  * @class ErrorLogging
  *
@@ -38,13 +53,78 @@
     ErrorLogging& operator=(ErrorLogging&&) = delete;
     virtual ~ErrorLogging() = default;
 
-    // TODO: The following are stubs.  Add parameters and doxygen later.
-    virtual void logConfigFileError() = 0;
-    virtual void logDBusError() = 0;
-    virtual void logI2CError() = 0;
-    virtual void logInternalError() = 0;
-    virtual void logPMBusError() = 0;
-    virtual void logWriteVerificationError() = 0;
+    /**
+     * Log a regulators configuration file error.
+     *
+     * This error is logged when the regulators configuration file could not be
+     * found, could not be read, or had invalid contents.
+     *
+     * @param severity severity level
+     * @param journal system journal
+     */
+    virtual void logConfigFileError(Entry::Level severity,
+                                    Journal& journal) = 0;
+
+    /**
+     * Log a D-Bus error.
+     *
+     * This error is logged when D-Bus communication fails.
+     *
+     * @param severity severity level
+     * @param journal system journal
+     */
+    virtual void logDBusError(Entry::Level severity, Journal& journal) = 0;
+
+    /**
+     * Log an I2C communication error.
+     *
+     * @param severity severity level
+     * @param journal system journal
+     * @param bus I2C bus in the form "/dev/i2c-X", where X is the 0-based bus
+     *            number
+     * @param addr 7 bit I2C address
+     * @param errorNumber errno value from the failed I2C operation
+     */
+    virtual void logI2CError(Entry::Level severity, Journal& journal,
+                             const std::string& bus, uint8_t addr,
+                             int errorNumber) = 0;
+
+    /**
+     * Log an internal firmware error.
+     *
+     * @param severity severity level
+     * @param journal system journal
+     */
+    virtual void logInternalError(Entry::Level severity, Journal& journal) = 0;
+
+    /**
+     * Log a PMBus error.
+     *
+     * This error is logged when the I2C communication was successful, but the
+     * PMBus value read is invalid or unsupported.
+     *
+     * @param severity severity level
+     * @param journal system journal
+     * @param inventoryPath D-Bus inventory path of the device where the error
+     *                      occurred
+     */
+    virtual void logPMBusError(Entry::Level severity, Journal& journal,
+                               const std::string& inventoryPath) = 0;
+
+    /**
+     * Log a write verification error.
+     *
+     * This error is logged when a device register is written, read back, and
+     * the two values do not match.  This is also called a read-back error.
+     *
+     * @param severity severity level
+     * @param journal system journal
+     * @param inventoryPath D-Bus inventory path of the device where the error
+     *                      occurred
+     */
+    virtual void
+        logWriteVerificationError(Entry::Level severity, Journal& journal,
+                                  const std::string& inventoryPath) = 0;
 };
 
 /**
@@ -72,17 +152,113 @@
     {
     }
 
-    // TODO: The following are stubs.  Add parameters, implementation, and
-    // doxygen later.
-    virtual void logConfigFileError(){};
-    virtual void logDBusError(){};
-    virtual void logI2CError(){};
-    virtual void logInternalError(){};
-    virtual void logPMBusError(){};
-    virtual void logWriteVerificationError(){};
+    /** @copydoc ErrorLogging::logConfigFileError() */
+    virtual void logConfigFileError(Entry::Level severity,
+                                    Journal& journal) override;
+
+    /** @copydoc ErrorLogging::logDBusError() */
+    virtual void logDBusError(Entry::Level severity, Journal& journal) override;
+
+    /** @copydoc ErrorLogging::logI2CError() */
+    virtual void logI2CError(Entry::Level severity, Journal& journal,
+                             const std::string& bus, uint8_t addr,
+                             int errorNumber) override;
+
+    /** @copydoc ErrorLogging::logInternalError() */
+    virtual void logInternalError(Entry::Level severity,
+                                  Journal& journal) override;
+
+    /** @copydoc ErrorLogging::logPMBusError() */
+    virtual void logPMBusError(Entry::Level severity, Journal& journal,
+                               const std::string& inventoryPath) override;
+
+    /** @copydoc ErrorLogging::logWriteVerificationError() */
+    virtual void
+        logWriteVerificationError(Entry::Level severity, Journal& journal,
+                                  const std::string& inventoryPath) override;
 
   private:
     /**
+     * Create an FFDCFile object containing the specified lines of text data.
+     *
+     * Throws an exception if an error occurs.
+     *
+     * @param lines lines of text data to write to file
+     * @return FFDCFile object
+     */
+    FFDCFile createFFDCFile(const std::vector<std::string>& lines);
+
+    /**
+     * Create FFDCFile objects containing debug data to store in the error log.
+     *
+     * If an error occurs, the error is written to the journal but an exception
+     * is not thrown.
+     *
+     * @param journal system journal
+     * @return vector of FFDCFile objects
+     */
+    std::vector<FFDCFile> createFFDCFiles(Journal& journal);
+
+    /**
+     * Create FFDCTuple objects corresponding to the specified FFDC files.
+     *
+     * The D-Bus method to create an error log requires a vector of tuples to
+     * pass in the FFDC file information.
+     *
+     * @param files FFDC files
+     * @return vector of FFDCTuple objects
+     */
+    std::vector<FFDCTuple> createFFDCTuples(std::vector<FFDCFile>& files);
+
+    /**
+     * Returns the absolute form of the specified inventory path.
+     *
+     * The inventory paths in the JSON configuration file are relative.  Add the
+     * the necessary prefix to make the path absolute.
+     *
+     * @param inventoryPath relative D-Bus inventory path
+     * @return absolute D-Bus inventory path
+     */
+    std::string getAbsoluteInventoryPath(const std::string& inventoryPath)
+    {
+        std::string absPath = "/xyz/openbmc_project/inventory";
+        if ((!inventoryPath.empty()) && (inventoryPath.front() != '/'))
+        {
+            absPath += '/';
+        }
+        absPath += inventoryPath;
+        return absPath;
+    }
+
+    /**
+     * Logs an error using the D-Bus CreateWithFFDCFiles method.
+     *
+     * If logging fails, a message is written to the journal but an exception is
+     * not thrown.
+     *
+     * @param message Message property of the error log entry
+     * @param severity Severity property of the error log entry
+     * @param additionalData AdditionalData property of the error log entry
+     * @param journal system journal
+     */
+    void logError(const std::string& message, Entry::Level severity,
+                  std::map<std::string, std::string>& additionalData,
+                  Journal& journal);
+
+    /**
+     * Removes the specified FFDC files from the file system.
+     *
+     * Also clears the specified vector, removing the FFDCFile objects.
+     *
+     * If an error occurs, the error is written to the journal but an exception
+     * is not thrown.
+     *
+     * @param files FFDC files to remove
+     * @param journal system journal
+     */
+    void removeFFDCFiles(std::vector<FFDCFile>& files, Journal& journal);
+
+    /**
      * D-Bus bus object.
      */
     sdbusplus::bus::bus& bus;
diff --git a/phosphor-regulators/src/meson.build b/phosphor-regulators/src/meson.build
index 8303769..b6b500c 100644
--- a/phosphor-regulators/src/meson.build
+++ b/phosphor-regulators/src/meson.build
@@ -9,6 +9,7 @@
     'config_file_parser.cpp',
     'configuration.cpp',
     'device.cpp',
+    'error_logging.cpp',
     'exception_utils.cpp',
     'ffdc_file.cpp',
     'id_map.cpp',
diff --git a/phosphor-regulators/test/mock_error_logging.hpp b/phosphor-regulators/test/mock_error_logging.hpp
index 697af3e..db75a37 100644
--- a/phosphor-regulators/test/mock_error_logging.hpp
+++ b/phosphor-regulators/test/mock_error_logging.hpp
@@ -38,13 +38,29 @@
     MockErrorLogging& operator=(MockErrorLogging&&) = delete;
     virtual ~MockErrorLogging() = default;
 
-    // TODO: Add parameters when ErrorLogging interface is complete
-    MOCK_METHOD(void, logConfigFileError, (), (override));
-    MOCK_METHOD(void, logDBusError, (), (override));
-    MOCK_METHOD(void, logI2CError, (), (override));
-    MOCK_METHOD(void, logInternalError, (), (override));
-    MOCK_METHOD(void, logPMBusError, (), (override));
-    MOCK_METHOD(void, logWriteVerificationError, (), (override));
+    MOCK_METHOD(void, logConfigFileError,
+                (Entry::Level severity, Journal& journal), (override));
+
+    MOCK_METHOD(void, logDBusError, (Entry::Level severity, Journal& journal),
+                (override));
+
+    MOCK_METHOD(void, logI2CError,
+                (Entry::Level severity, Journal& journal,
+                 const std::string& bus, uint8_t addr, int errorNumber),
+                (override));
+
+    MOCK_METHOD(void, logInternalError,
+                (Entry::Level severity, Journal& journal), (override));
+
+    MOCK_METHOD(void, logPMBusError,
+                (Entry::Level severity, Journal& journal,
+                 const std::string& inventoryPath),
+                (override));
+
+    MOCK_METHOD(void, logWriteVerificationError,
+                (Entry::Level severity, Journal& journal,
+                 const std::string& inventoryPath),
+                (override));
 };
 
 } // namespace phosphor::power::regulators