diff --git a/test/png/PngSuite/interlace/no_interlace_enc.png b/test/png/PngSuite/interlace/no_interlace_enc.png
new file mode 100644
index 0000000..702cf5e
Binary files /dev/null and b/test/png/PngSuite/interlace/no_interlace_enc.png differ
diff --git a/test/png/PngSuite/interlace/with_interlace_enc.png b/test/png/PngSuite/interlace/with_interlace_enc.png
new file mode 100644
index 0000000..37f0030
Binary files /dev/null and b/test/png/PngSuite/interlace/with_interlace_enc.png differ
diff --git a/test/png/encode/index.js b/test/png/encode/index.js
index f61f587..83b41ad 100644
--- a/test/png/encode/index.js
+++ b/test/png/encode/index.js
@@ -17,6 +17,7 @@ describe('Encode', function () {
 	});
 
 	require('./filter');
+	require('./interlace');
 
 	require('./ancillary');
 	require('./custom');
diff --git a/test/png/encode/interlace.js b/test/png/encode/interlace.js
new file mode 100644
index 0000000..020828d
--- /dev/null
+++ b/test/png/encode/interlace.js
@@ -0,0 +1,45 @@
+// Copyright 2015 Yahoo! Inc.
+// Copyrights licensed under the Mit License. See the accompanying LICENSE file for terms.
+
+var testGen = require('../testGen');
+
+describe('Interlace', function () {
+
+	describe('No Interlace', function () {
+
+		testGen.addEncodeTests({
+			resourceGroup: [],
+			resourceFile: 'base',
+			outputGroup: 'interlace',
+			outputFile: 'no_interlace',
+
+			imageCheck: true,
+			width: 32,
+			height: 32,
+
+			encodeOptions: {
+				filter: 0,
+				interlace: 0
+			}
+		});
+	});
+
+	describe('With Interlace', function () {
+
+		testGen.addEncodeTests({
+			resourceGroup: [],
+			resourceFile: 'base',
+			outputGroup: 'interlace',
+			outputFile: 'with_interlace',
+
+			imageCheck: true,
+			width: 32,
+			height: 32,
+
+			encodeOptions: {
+				filter: 0,
+				interlace: 1
+			}
+		});
+	});
+});