diff --git a/Sources/OpenTelemetryApi/Metrics/Stable/DefaultStableMeter.swift b/Sources/OpenTelemetryApi/Metrics/Stable/DefaultStableMeter.swift
index 50300ed1..f13a20ae 100644
--- a/Sources/OpenTelemetryApi/Metrics/Stable/DefaultStableMeter.swift
+++ b/Sources/OpenTelemetryApi/Metrics/Stable/DefaultStableMeter.swift
@@ -66,9 +66,13 @@ public class DefaultStableMeter : StableMeter {
     }
   }
   
-  private struct NoopObservableLongGauge : ObservableLongGauge {}
+  private struct NoopObservableLongGauge : ObservableLongGauge {
+      func close() {}
+  }
   
-  private struct NoopObservableDoubleGauge : ObservableDoubleGauge {}
+  private struct NoopObservableDoubleGauge : ObservableDoubleGauge {
+      func close() {}
+  }
   
   private class NoopDoubleUpDownCounterBuilder : DoubleUpDownCounterBuilder {
     func build() -> DoubleUpDownCounter {
@@ -80,7 +84,9 @@ public class DefaultStableMeter : StableMeter {
     }
   }
   
-  private struct NoopObservableDoubleUpDownCounter : ObservableDoubleUpDownCounter {}
+  private struct NoopObservableDoubleUpDownCounter : ObservableDoubleUpDownCounter {
+      func close() {}
+  }
   
   private struct NoopDoubleUpDownCounter : DoubleUpDownCounter {
     mutating func add(value: Double) {}
@@ -103,7 +109,9 @@ public class DefaultStableMeter : StableMeter {
     mutating func record(value: Int, attributes: [String : AttributeValue]) {}
   }
   
-  private class NoopObservableLongUpDownCounter : ObservableLongUpDownCounter {}
+  private class NoopObservableLongUpDownCounter : ObservableLongUpDownCounter {
+      func close() {}
+  }
   
   private class NoopDoubleHistogram : DoubleHistogram {
     func record(value: Double) {}
@@ -139,8 +147,13 @@ public class DefaultStableMeter : StableMeter {
     }
   }
   
-  private class NoopObservableLongCounter : ObservableLongCounter {}
-  private class NoopObservableDoubleCounter: ObservableDoubleCounter {}
+  private class NoopObservableLongCounter : ObservableLongCounter {
+      func close() {}
+  }
+    
+  private class NoopObservableDoubleCounter: ObservableDoubleCounter {
+      func close() {}
+  }
 
   private class StableNoopDoubleCounterBuilder : DoubleCounterBuilder {
     func build() -> DoubleCounter {
diff --git a/Sources/OpenTelemetryApi/Metrics/Stable/ObservableDoubleCounter.swift b/Sources/OpenTelemetryApi/Metrics/Stable/ObservableDoubleCounter.swift
index de10ef26..00355435 100644
--- a/Sources/OpenTelemetryApi/Metrics/Stable/ObservableDoubleCounter.swift
+++ b/Sources/OpenTelemetryApi/Metrics/Stable/ObservableDoubleCounter.swift
@@ -6,4 +6,5 @@
 import Foundation
 
 public protocol ObservableDoubleCounter {
+    func close()
 }
diff --git a/Sources/OpenTelemetryApi/Metrics/Stable/ObservableDoubleGauge.swift b/Sources/OpenTelemetryApi/Metrics/Stable/ObservableDoubleGauge.swift
index 89f8482a..bfadf9ed 100644
--- a/Sources/OpenTelemetryApi/Metrics/Stable/ObservableDoubleGauge.swift
+++ b/Sources/OpenTelemetryApi/Metrics/Stable/ObservableDoubleGauge.swift
@@ -6,4 +6,5 @@
 import Foundation
 
 public protocol ObservableDoubleGauge {
+    func close()
 }
diff --git a/Sources/OpenTelemetryApi/Metrics/Stable/ObservableDoubleUpDownCounter.swift b/Sources/OpenTelemetryApi/Metrics/Stable/ObservableDoubleUpDownCounter.swift
index a3ce7657..43d4b2b7 100644
--- a/Sources/OpenTelemetryApi/Metrics/Stable/ObservableDoubleUpDownCounter.swift
+++ b/Sources/OpenTelemetryApi/Metrics/Stable/ObservableDoubleUpDownCounter.swift
@@ -6,4 +6,5 @@
 import Foundation
 
 public protocol ObservableDoubleUpDownCounter {
+    func close()
 }
diff --git a/Sources/OpenTelemetryApi/Metrics/Stable/ObservableLongCounter.swift b/Sources/OpenTelemetryApi/Metrics/Stable/ObservableLongCounter.swift
index 234f2c86..0696b6a8 100644
--- a/Sources/OpenTelemetryApi/Metrics/Stable/ObservableLongCounter.swift
+++ b/Sources/OpenTelemetryApi/Metrics/Stable/ObservableLongCounter.swift
@@ -6,4 +6,5 @@
 import Foundation
 
 public protocol ObservableLongCounter {
+    func close()
 }
diff --git a/Sources/OpenTelemetryApi/Metrics/Stable/ObservableLongGauge.swift b/Sources/OpenTelemetryApi/Metrics/Stable/ObservableLongGauge.swift
index 8a0b72b0..0ce4c488 100644
--- a/Sources/OpenTelemetryApi/Metrics/Stable/ObservableLongGauge.swift
+++ b/Sources/OpenTelemetryApi/Metrics/Stable/ObservableLongGauge.swift
@@ -6,4 +6,5 @@
 import Foundation
 
 public protocol ObservableLongGauge {
+    func close()
 }
diff --git a/Sources/OpenTelemetryApi/Metrics/Stable/ObservableLongUpDownCounter.swift b/Sources/OpenTelemetryApi/Metrics/Stable/ObservableLongUpDownCounter.swift
index 9b89dc61..7a663440 100644
--- a/Sources/OpenTelemetryApi/Metrics/Stable/ObservableLongUpDownCounter.swift
+++ b/Sources/OpenTelemetryApi/Metrics/Stable/ObservableLongUpDownCounter.swift
@@ -6,4 +6,5 @@
 import Foundation
 
 public protocol ObservableLongUpDownCounter {
+    func close()
 }
diff --git a/Sources/OpenTelemetrySdk/Metrics/Stable/ObservableInstrumentSdk.swift b/Sources/OpenTelemetrySdk/Metrics/Stable/ObservableInstrumentSdk.swift
index a534d09a..9fc56c10 100644
--- a/Sources/OpenTelemetrySdk/Metrics/Stable/ObservableInstrumentSdk.swift
+++ b/Sources/OpenTelemetrySdk/Metrics/Stable/ObservableInstrumentSdk.swift
@@ -16,4 +16,7 @@ public struct ObservableInstrumentSdk : ObservableDoubleCounter, ObservableLongC
     }
     
     // todo: Java implementation uses closeables to remove this from the meterSharedState.callback Registation. investigate alternative?
+    public func close() {
+        meterSharedState.removeCallback(callback: callbackRegistration)
+    }
 }