diff --git a/phosphor-power-sequencer/src/config_file_parser.cpp b/phosphor-power-sequencer/src/config_file_parser.cpp
index 07566ae..3163aff 100644
--- a/phosphor-power-sequencer/src/config_file_parser.cpp
+++ b/phosphor-power-sequencer/src/config_file_parser.cpp
@@ -118,6 +118,29 @@
     return GPIO(line, activeLow);
 }
 
+std::tuple<uint8_t, uint16_t> parseI2CInterface(
+    const nlohmann::json& element,
+    const std::map<std::string, std::string>& variables)
+{
+    verifyIsObject(element);
+    unsigned int propertyCount{0};
+
+    // Required bus property
+    const json& busElement = getRequiredProperty(element, "bus");
+    uint8_t bus = parseUint8(busElement, variables);
+    ++propertyCount;
+
+    // Required address property
+    const json& addressElement = getRequiredProperty(element, "address");
+    uint16_t address = parseHexByte(addressElement, variables);
+    ++propertyCount;
+
+    // Verify no invalid properties exist
+    verifyPropertyCount(element, propertyCount);
+
+    return {bus, address};
+}
+
 std::unique_ptr<Rail> parseRail(const json& element)
 {
     verifyIsObject(element);
diff --git a/phosphor-power-sequencer/src/config_file_parser.hpp b/phosphor-power-sequencer/src/config_file_parser.hpp
index ee12690..a57083e 100644
--- a/phosphor-power-sequencer/src/config_file_parser.hpp
+++ b/phosphor-power-sequencer/src/config_file_parser.hpp
@@ -19,9 +19,12 @@
 
 #include <nlohmann/json.hpp>
 
+#include <cstdint>
 #include <filesystem>
+#include <map>
 #include <memory>
 #include <string>
+#include <tuple>
 #include <vector>
 
 namespace phosphor::power::sequencer::config_file_parser
@@ -88,6 +91,21 @@
 GPIO parseGPIO(const nlohmann::json& element);
 
 /**
+ * Parses a JSON element containing an i2c_interface object.
+ *
+ * Returns the corresponding I2C bus and address.
+ *
+ * Throws an exception if parsing fails.
+ *
+ * @param element JSON element
+ * @param variables variables map used to expand variables in element value
+ * @return tuple containing bus and address
+ */
+std::tuple<uint8_t, uint16_t> parseI2CInterface(
+    const nlohmann::json& element,
+    const std::map<std::string, std::string>& variables);
+
+/**
  * Parses a JSON element containing a rail.
  *
  * Returns the corresponding C++ Rail object.