diff --git a/dawn.json b/dawn.json
index 82b243a..7528d46 100644
--- a/dawn.json
+++ b/dawn.json
@@ -378,6 +378,14 @@
             {"name": "compute stage", "type": "pipeline stage descriptor", "annotation": "const*"}
         ]
     },
+    "cull mode": {
+        "category": "enum",
+        "values": [
+            {"value": 0, "name": "none"},
+            {"value": 1, "name": "front"},
+            {"value": 2, "name": "back"}
+        ]
+    },
     "device": {
         "category": "object",
         "methods": [
@@ -550,6 +558,13 @@
     "float": {
         "category": "native"
     },
+    "front face": {
+        "category": "enum",
+        "values": [
+            {"value": 0, "name": "CCW"},
+            {"value": 1, "name": "CW"}
+        ]
+    },
     "index format": {
         "category": "enum",
         "values": [
@@ -671,6 +686,18 @@
         ]
     },
 
+    "rasterization state descriptor": {
+        "category": "structure",
+        "extensible": true,
+        "members": [
+            {"name": "front face", "type": "front face"},
+            {"name": "cull mode", "type": "cull mode"},
+            {"name": "depth bias", "type": "int32_t"},
+            {"name": "depth bias slope scale", "type": "float"},
+            {"name": "depth bias clamp", "type": "float"}
+        ]
+    },
+
     "render pass color attachment descriptor": {
         "category": "structure",
         "members": [
@@ -824,6 +851,7 @@
             {"name": "fragment stage", "type": "pipeline stage descriptor", "annotation": "const*"},
             {"name": "input state", "type": "input state descriptor", "annotation": "const*"},
             {"name": "primitive topology", "type": "primitive topology"},
+            {"name": "rasterization state", "type": "rasterization state descriptor", "annotation": "const*"},
             {"name": "sample count", "type": "uint32_t"},
             {"name": "depth stencil state", "type": "depth stencil state descriptor", "annotation": "const*", "optional": true},
             {"name": "color state count", "type": "uint32_t"},
@@ -1094,6 +1122,9 @@
     "uint32_t": {
         "category": "native"
     },
+    "int32_t": {
+        "category": "native"
+    },
     "uint64_t": {
         "category": "native"
     },
diff --git a/examples/CHelloTriangle.cpp b/examples/CHelloTriangle.cpp
index c79f557..d999868 100644
--- a/examples/CHelloTriangle.cpp
+++ b/examples/CHelloTriangle.cpp
@@ -102,6 +102,15 @@
         inputState.attributes = nullptr;
         descriptor.inputState = &inputState;
 
+        DawnRasterizationStateDescriptor rasterizationState;
+        rasterizationState.nextInChain = nullptr;
+        rasterizationState.frontFace = DAWN_FRONT_FACE_CCW;
+        rasterizationState.cullMode = DAWN_CULL_MODE_NONE;
+        rasterizationState.depthBias = 0;
+        rasterizationState.depthBiasSlopeScale = 0.0;
+        rasterizationState.depthBiasClamp = 0.0;
+        descriptor.rasterizationState = &rasterizationState;
+
         descriptor.primitiveTopology = DAWN_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST;
 
         descriptor.depthStencilState = nullptr;
diff --git a/src/dawn_native/RenderPipeline.cpp b/src/dawn_native/RenderPipeline.cpp
index eb8a7b8..7fddfc0 100644
--- a/src/dawn_native/RenderPipeline.cpp
+++ b/src/dawn_native/RenderPipeline.cpp
@@ -97,6 +97,16 @@
             return {};
         }
 
+        MaybeError ValidateRasterizationStateDescriptor(
+            const RasterizationStateDescriptor* descriptor) {
+            if (descriptor->nextInChain != nullptr) {
+                return DAWN_VALIDATION_ERROR("nextInChain must be nullptr");
+            }
+            DAWN_TRY(ValidateFrontFace(descriptor->frontFace));
+            DAWN_TRY(ValidateCullMode(descriptor->cullMode));
+            return {};
+        }
+
         MaybeError ValidateColorStateDescriptor(const ColorStateDescriptor* descriptor) {
             if (descriptor->nextInChain != nullptr) {
                 return DAWN_VALIDATION_ERROR("nextInChain must be nullptr");
@@ -264,6 +274,7 @@
                                                  descriptor->layout, dawn::ShaderStage::Vertex));
         DAWN_TRY(ValidatePipelineStageDescriptor(device, descriptor->fragmentStage,
                                                  descriptor->layout, dawn::ShaderStage::Fragment));
+        DAWN_TRY(ValidateRasterizationStateDescriptor(descriptor->rasterizationState));
 
         if ((descriptor->vertexStage->module->GetUsedVertexAttributes() & ~attributesSetMask)
                 .any()) {
@@ -323,6 +334,7 @@
                        dawn::ShaderStageBit::Vertex | dawn::ShaderStageBit::Fragment),
           mInputState(*descriptor->inputState),
           mPrimitiveTopology(descriptor->primitiveTopology),
+          mRasterizationState(*descriptor->rasterizationState),
           mHasDepthStencilAttachment(descriptor->depthStencilState != nullptr),
           mSampleCount(descriptor->sampleCount) {
         uint32_t location = 0;
diff --git a/src/dawn_native/RenderPipeline.h b/src/dawn_native/RenderPipeline.h
index 3d8fbea..186de2c 100644
--- a/src/dawn_native/RenderPipeline.h
+++ b/src/dawn_native/RenderPipeline.h
@@ -75,6 +75,7 @@
         std::bitset<kMaxVertexInputs> mInputsSetMask;
         std::array<VertexInputDescriptor, kMaxVertexInputs> mInputInfos;
         dawn::PrimitiveTopology mPrimitiveTopology;
+        RasterizationStateDescriptor mRasterizationState;
         DepthStencilStateDescriptor mDepthStencilState;
         std::array<ColorStateDescriptor, kMaxColorAttachments> mColorStates;
 
diff --git a/src/tests/unittests/wire/WireArgumentTests.cpp b/src/tests/unittests/wire/WireArgumentTests.cpp
index e96ecd3..dc4c605 100644
--- a/src/tests/unittests/wire/WireArgumentTests.cpp
+++ b/src/tests/unittests/wire/WireArgumentTests.cpp
@@ -105,6 +105,15 @@
     inputState.numAttributes = 0;
     inputState.attributes = nullptr;
 
+    // Create the rasterization state
+    DawnRasterizationStateDescriptor rasterizationState;
+    rasterizationState.nextInChain = nullptr;
+    rasterizationState.frontFace = DAWN_FRONT_FACE_CCW;
+    rasterizationState.cullMode = DAWN_CULL_MODE_NONE;
+    rasterizationState.depthBias = 0;
+    rasterizationState.depthBiasSlopeScale = 0.0;
+    rasterizationState.depthBiasClamp = 0.0;
+
     // Create the depth-stencil state
     DawnStencilStateFaceDescriptor stencilFace;
     stencilFace.compare = DAWN_COMPARE_FUNCTION_ALWAYS;
@@ -155,6 +164,7 @@
     pipelineDescriptor.layout = layout;
     pipelineDescriptor.inputState = &inputState;
     pipelineDescriptor.primitiveTopology = DAWN_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST;
+    pipelineDescriptor.rasterizationState = &rasterizationState;
     pipelineDescriptor.depthStencilState = &depthStencilState;
 
     dawnDeviceCreateRenderPipeline(device, &pipelineDescriptor);
diff --git a/src/tests/unittests/wire/WireOptionalTests.cpp b/src/tests/unittests/wire/WireOptionalTests.cpp
index 29972b1..2cf6c1e 100644
--- a/src/tests/unittests/wire/WireOptionalTests.cpp
+++ b/src/tests/unittests/wire/WireOptionalTests.cpp
@@ -95,6 +95,15 @@
     inputState.numAttributes = 0;
     inputState.attributes = nullptr;
 
+    // Create the rasterization state
+    DawnRasterizationStateDescriptor rasterizationState;
+    rasterizationState.nextInChain = nullptr;
+    rasterizationState.frontFace = DAWN_FRONT_FACE_CCW;
+    rasterizationState.cullMode = DAWN_CULL_MODE_NONE;
+    rasterizationState.depthBias = 0;
+    rasterizationState.depthBiasSlopeScale = 0.0;
+    rasterizationState.depthBiasClamp = 0.0;
+
     // Create the depth-stencil state
     DawnStencilStateFaceDescriptor stencilFace;
     stencilFace.compare = DAWN_COMPARE_FUNCTION_ALWAYS;
@@ -145,6 +154,7 @@
     pipelineDescriptor.layout = layout;
     pipelineDescriptor.inputState = &inputState;
     pipelineDescriptor.primitiveTopology = DAWN_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST;
+    pipelineDescriptor.rasterizationState = &rasterizationState;
 
     // First case: depthStencilState is not null.
     pipelineDescriptor.depthStencilState = &depthStencilState;
diff --git a/src/utils/ComboRenderPipelineDescriptor.cpp b/src/utils/ComboRenderPipelineDescriptor.cpp
index 794760d..c202ee1 100644
--- a/src/utils/ComboRenderPipelineDescriptor.cpp
+++ b/src/utils/ComboRenderPipelineDescriptor.cpp
@@ -68,6 +68,17 @@
         // Set defaults for the input state descriptors.
         descriptor->inputState = &cInputState;
 
+        // Set defaults for the rasterization state descriptor.
+        {
+            cRasterizationState.frontFace = dawn::FrontFace::CCW;
+            cRasterizationState.cullMode = dawn::CullMode::None;
+
+            cRasterizationState.depthBias = 0;
+            cRasterizationState.depthBiasSlopeScale = 0.0;
+            cRasterizationState.depthBiasClamp = 0.0;
+            descriptor->rasterizationState = &cRasterizationState;
+        }
+
         // Set defaults for the color state descriptors.
         {
             descriptor->colorStateCount = 1;
diff --git a/src/utils/ComboRenderPipelineDescriptor.h b/src/utils/ComboRenderPipelineDescriptor.h
index 123f637..69ab688 100644
--- a/src/utils/ComboRenderPipelineDescriptor.h
+++ b/src/utils/ComboRenderPipelineDescriptor.h
@@ -39,6 +39,7 @@
         dawn::PipelineStageDescriptor cFragmentStage;
 
         ComboInputStateDescriptor cInputState;
+        dawn::RasterizationStateDescriptor cRasterizationState;
         std::array<dawn::ColorStateDescriptor*, kMaxColorAttachments> cColorStates;
         dawn::DepthStencilStateDescriptor cDepthStencilState;