diff --git a/lib/enum.js b/lib/enum.js
index e7c752ec..929af327 100644
--- a/lib/enum.js
+++ b/lib/enum.js
@@ -175,9 +175,6 @@ module.exports.RejectReasons = {
   REJECT_REASON_TOO_MANY_ARGUMENTS: 7,
   REJECT_REASON_UNDEFINED_ENUMERATION: 8,
   REJECT_REASON_UNRECOGNIZED_SERVICE: 9,
-  MAX_BACNET_REJECT_REASON: 10,
-  REJECT_REASON_PROPRIETARY_FIRST: 64,
-  REJECT_REASON_PROPRIETARY_LAST: 65535
 };
 
 module.exports.ErrorClasses = {
@@ -189,9 +186,6 @@ module.exports.ErrorClasses = {
   ERROR_CLASS_SERVICES: 5,
   ERROR_CLASS_VT: 6,
   ERROR_CLASS_COMMUNICATION: 7,
-  MAX_BACNET_ERROR_CLASS: 8,
-  ERROR_CLASS_PROPRIETARY_FIRST: 64,
-  ERROR_CLASS_PROPRIETARY_LAST: 65535
 };
 
 module.exports.ErrorCodes = {
@@ -332,9 +326,6 @@ module.exports.ErrorCodes = {
   ERROR_CODE_VALUE_TOO_LONG: 134,
   ERROR_CODE_ABORT_INSUFFICIENT_SECURITY: 135,
   ERROR_CODE_ABORT_SECURITY_ERROR: 136,
-  MAX_BACNET_ERROR_CODE: 137,
-  ERROR_CODE_PROPRIETARY_FIRST: 256,
-  ERROR_CODE_PROPRIETARY_LAST: 65535
 };
 
 module.exports.StatusFlags = {
@@ -386,7 +377,6 @@ module.exports.ServicesSupported = {
   SERVICE_SUPPORTED_UTC_TIME_SYNCHRONIZATION: 36,
   SERVICE_SUPPORTED_WHO_HAS: 33,
   SERVICE_SUPPORTED_WHO_IS: 34,
-  MAX_BACNET_SERVICES_SUPPORTED: 41
 };
 
 module.exports.UnconfirmedServices = {
@@ -401,7 +391,6 @@ module.exports.UnconfirmedServices = {
   SERVICE_UNCONFIRMED_WHO_IS: 8,
   SERVICE_UNCONFIRMED_UTC_TIME_SYNCHRONIZATION: 9,
   SERVICE_UNCONFIRMED_WRITE_GROUP: 10,
-  MAX_BACNET_UNCONFIRMED_SERVICE: 11
 };
 
 module.exports.ConfirmedServices = {
@@ -435,7 +424,6 @@ module.exports.ConfirmedServices = {
   SERVICE_CONFIRMED_VT_DATA: 23,
   SERVICE_CONFIRMED_AUTHENTICATE: 24,
   SERVICE_CONFIRMED_REQUEST_KEY: 25,
-  MAX_BACNET_CONFIRMED_SERVICE: 30
 };
 
 module.exports.UnitsId = {
@@ -809,10 +797,6 @@ module.exports.ObjectTypes = {
   OBJECT_CHANNEL: 53,
   OBJECT_LIGHTING_OUTPUT: 54,
   OBJECT_BINARY_LIGHTING_OUTPUT: 55,
-  OBJECT_PROPRIETARY_MIN: 128,
-  OBJECT_PROPRIETARY_MAX: 1023,
-  MAX_BACNET_OBJECT_TYPE: 1024,
-  MAX_ASHRAE_OBJECT_TYPE: 55
 };
 
 /**
@@ -836,7 +820,6 @@ module.exports.ApplicationTags = {
   BACNET_APPLICATION_TAG_RESERVE1: 13,
   BACNET_APPLICATION_TAG_RESERVE2: 14,
   BACNET_APPLICATION_TAG_RESERVE3: 15,
-  MAX_BACNET_APPLICATION_TAG: 16,
   BACNET_APPLICATION_TAG_EMPTYLIST: 100,
   BACNET_APPLICATION_TAG_WEEKNDAY: 101,
   BACNET_APPLICATION_TAG_DATERANGE: 102,
@@ -1235,7 +1218,6 @@ module.exports.PropertyIds = {
   PROP_STATE_CHANGE_VALUES: 396,
   PROP_TIMER_RUNNING: 397,
   PROP_TIMER_STATE: 398,
-  MAX_BACNET_PROPERTY_ID: 4194303
 };
 
 module.exports.NodeTypes = {
@@ -1266,7 +1248,6 @@ module.exports.BvlcFunctions = {
   BVLC_DISTRIBUTE_BROADCAST_TO_NETWORK: 9,
   BVLC_ORIGINAL_UNICAST_NPDU: 10,
   BVLC_ORIGINAL_BROADCAST_NPDU: 11,
-  MAX_BVLC_FUNCTION: 12
 };
 
 module.exports.BvlcResults = {