diff --git a/phosphor-regulators/src/actions/pmbus_write_vout_command_action.cpp b/phosphor-regulators/src/actions/pmbus_write_vout_command_action.cpp
new file mode 100644
index 0000000..ae5ac4d
--- /dev/null
+++ b/phosphor-regulators/src/actions/pmbus_write_vout_command_action.cpp
@@ -0,0 +1,167 @@
+/**
+ * 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 "pmbus_write_vout_command_action.hpp"
+
+#include "action_error.hpp"
+#include "pmbus_error.hpp"
+#include "write_verification_error.hpp"
+
+#include <exception>
+#include <ios>
+#include <sstream>
+
+namespace phosphor::power::regulators
+{
+
+bool PMBusWriteVoutCommandAction::execute(ActionEnvironment& environment)
+{
+    try
+    {
+        // Get volts value
+        double voltsValue = getVoltsValue(environment);
+
+        // Get I2C interface to current device
+        i2c::I2CInterface& interface = getI2CInterface(environment);
+
+        // Get exponent value for converting volts value to linear format
+        int8_t exponentValue = getExponentValue(interface);
+
+        // Convert volts value to linear data format
+        uint16_t linearValue =
+            pmbus_utils::convertToVoutLinear(voltsValue, exponentValue);
+
+        // Write linear format value to VOUT_COMMAND.  I2CInterface method
+        // writes low-order byte first as required by PMBus.
+        interface.write(pmbus_utils::VOUT_COMMAND, linearValue);
+
+        // Verify write if necessary
+        if (isWriteVerified)
+        {
+            verifyWrite(environment, interface, linearValue);
+        }
+    }
+    // Nest the following exception types within an ActionError so the caller
+    // will have both the low level error information and the action information
+    catch (const i2c::I2CException& i2cError)
+    {
+        std::throw_with_nested(ActionError(*this));
+    }
+    catch (const PMBusError& pmbusError)
+    {
+        std::throw_with_nested(ActionError(*this));
+    }
+    catch (const WriteVerificationError& verifyError)
+    {
+        std::throw_with_nested(ActionError(*this));
+    }
+    return true;
+}
+
+std::string PMBusWriteVoutCommandAction::toString() const
+{
+    std::ostringstream ss;
+    ss << "pmbus_write_vout_command: { ";
+
+    if (volts.has_value())
+    {
+        ss << "volts: " << volts.value() << ", ";
+    }
+
+    // Only linear format is currently supported
+    ss << "format: linear";
+
+    if (exponent.has_value())
+    {
+        ss << ", exponent: " << static_cast<int16_t>(exponent.value());
+    }
+
+    ss << ", is_verified: " << std::boolalpha << isWriteVerified << " }";
+    return ss.str();
+}
+
+int8_t
+    PMBusWriteVoutCommandAction::getExponentValue(i2c::I2CInterface& interface)
+{
+    // Check if an exponent value is defined for this action
+    if (exponent.has_value())
+    {
+        return exponent.value();
+    }
+
+    // Read value of the VOUT_MODE command
+    uint8_t voutModeValue;
+    interface.read(pmbus_utils::VOUT_MODE, voutModeValue);
+
+    // Parse VOUT_MODE value to get data format and parameter value
+    pmbus_utils::VoutDataFormat format;
+    int8_t parameter;
+    pmbus_utils::parseVoutMode(voutModeValue, format, parameter);
+
+    // Verify format is linear; other formats not currently supported
+    if (format != pmbus_utils::VoutDataFormat::linear)
+    {
+        throw PMBusError("VOUT_MODE contains unsupported data format");
+    }
+
+    // Return parameter value; it contains the exponent when format is linear
+    return parameter;
+}
+
+double
+    PMBusWriteVoutCommandAction::getVoltsValue(ActionEnvironment& environment)
+{
+    double voltsValue;
+
+    if (volts.has_value())
+    {
+        // A volts value is defined for this action
+        voltsValue = volts.value();
+    }
+    else if (environment.hasVolts())
+    {
+        // A volts value is defined in the ActionEnvironment
+        voltsValue = environment.getVolts();
+    }
+    else
+    {
+        throw ActionError(*this, "No volts value defined");
+    }
+
+    return voltsValue;
+}
+
+void PMBusWriteVoutCommandAction::verifyWrite(ActionEnvironment& environment,
+                                              i2c::I2CInterface& interface,
+                                              uint16_t valueWritten)
+{
+    // Read current value of VOUT_COMMAND.  I2CInterface method reads low byte
+    // first as required by PMBus.
+    uint16_t valueRead{0x00};
+    interface.read(pmbus_utils::VOUT_COMMAND, valueRead);
+
+    // Verify value read equals value written
+    if (valueRead != valueWritten)
+    {
+        std::ostringstream ss;
+        ss << "device: " << environment.getDeviceID()
+           << ", register: VOUT_COMMAND, value_written: 0x" << std::hex
+           << std::uppercase << valueWritten << ", value_read: 0x" << valueRead;
+        throw WriteVerificationError(ss.str());
+    }
+}
+
+} // namespace phosphor::power::regulators