diff --git a/phosphor-power-sequencer/src/power_control.hpp b/phosphor-power-sequencer/src/power_control.hpp
index 560a5f9..0670876 100644
--- a/phosphor-power-sequencer/src/power_control.hpp
+++ b/phosphor-power-sequencer/src/power_control.hpp
@@ -98,6 +98,16 @@
     sdbusplus::bus::match_t match;
 
     /**
+     * Minimum time from cold start to power on constant
+     */
+    static constexpr std::chrono::seconds minimumColdStartTime{15};
+
+    /**
+     * Minimum time from power off to power on constant
+     */
+    static constexpr std::chrono::seconds minimumPowerOffTime{25};
+
+    /**
      * Power good
      */
     int pgood{0};
@@ -110,8 +120,7 @@
     /**
      * Power good timeout constant
      */
-    static constexpr std::chrono::seconds pgoodTimeout{
-        std::chrono::seconds(10)};
+    static constexpr std::chrono::seconds pgoodTimeout{10};
 
     /**
      * Point in time at which power good timeout will take place
@@ -121,8 +130,7 @@
     /**
      * Poll interval constant
      */
-    static constexpr std::chrono::milliseconds pollInterval{
-        std::chrono::milliseconds(3000)};
+    static constexpr std::chrono::milliseconds pollInterval{3000};
 
     /**
      * GPIO line object for power-on / power-off control
@@ -130,6 +138,11 @@
     gpiod::line powerControlLine;
 
     /**
+     * Point in time at which minumum power off time will have passed
+     */
+    std::chrono::time_point<std::chrono::steady_clock> powerOnAllowedTime;
+
+    /**
      * Power supply error.  Cleared at power on.
      */
     std::string powerSupplyError;