diff --git a/calrissian/job.py b/calrissian/job.py
index f18b0e3..1f708d9 100644
--- a/calrissian/job.py
+++ b/calrissian/job.py
@@ -4,6 +4,7 @@
 from cwltool.errors import WorkflowException, UnsupportedRequirement
 from calrissian.k8s import KubernetesClient, CompletionResult
 from calrissian.report import Reporter, TimedResourceReport
+from cwltool.builder import Builder
 import logging
 import os
 import yaml
@@ -188,7 +189,7 @@ def add_emptydir_volume_binding(self, name, target):
 
 class KubernetesPodBuilder(object):
 
-    def __init__(self, name, container_image, environment, volume_mounts, volumes, command_line, stdout, stderr, stdin, resources, labels, nodeselectors, security_context, serviceaccount):
+    def __init__(self, name, container_image, environment, volume_mounts, volumes, command_line, stdout, stderr, stdin, resources, labels, nodeselectors, security_context, serviceaccount, requirements=None, hints=None):
         self.name = name
         self.container_image = container_image
         self.environment = environment
@@ -203,6 +204,8 @@ def __init__(self, name, container_image, environment, volume_mounts, volumes, c
         self.nodeselectors = nodeselectors
         self.security_context = security_context
         self.serviceaccount = serviceaccount
+        self.requirements = {} if requirements is None else requirements
+        self.hints = [] if hints is None else hints
 
     def pod_name(self):
         tag = random_tag()
@@ -297,7 +300,7 @@ def resource_value(kind, cwl_value):
             return None
 
     def container_resources(self):
-        log.debug('Building resources spec from {}'.format(self.resources))
+        log.debug(f'Building resources spec from {self.resources}')
         container_resources = {}
         for cwl_field, cwl_value in self.resources.items():
             resource_bound = 'requests'
@@ -307,6 +310,19 @@ def container_resources(self):
                 if not container_resources.get(resource_bound):
                     container_resources[resource_bound] = {}
                 container_resources[resource_bound][resource_type] = resource_value
+
+        # Add CUDA requirements from CWL
+        for requirement in self.hints:
+            if requirement["class"] in ['cwltool:CUDARequirement', 'http://commonwl.org/cwltool#CUDARequirement']:
+                log.debug('Adding CUDARequirement resources spec')
+                resource_bound = 'requests'
+                container_resources[resource_bound]['nvidia.com/gpu'] = str(requirement["cudaDeviceCountMin"])
+                if "limits" in container_resources:
+                    resource_bound = 'limits'
+                    container_resources[resource_bound]['nvidia.com/gpu'] = str(requirement["cudaDeviceCountMax"])
+                else:
+                    container_resources['limits'] = {'nvidia.com/gpu': str(requirement["cudaDeviceCountMax"])}
+
         return container_resources
 
     def pod_labels(self):
@@ -553,7 +569,9 @@ def create_kubernetes_runtime(self, runtimeContext):
             self.get_pod_labels(runtimeContext),
             self.get_pod_nodeselectors(runtimeContext),
             self.get_security_context(runtimeContext),
-            self.get_pod_serviceaccount(runtimeContext)
+            self.get_pod_serviceaccount(runtimeContext),
+            self.builder.requirements,
+            self.builder.hints
         )
         built = k8s_builder.build()
         log.debug('{}\n{}{}\n'.format('-' * 80, yaml.dump(built), '-' * 80))
@@ -692,4 +710,4 @@ def append_volume(self, runtime, source, target, writable=False):
         This is called by the base class for file literals after they've been created.
         We already have a similar function, so we just call that.
         """
-        self._add_volume_binding(source, target, writable)
+        self._add_volume_binding(source, target, writable)
\ No newline at end of file
diff --git a/tests/test_job.py b/tests/test_job.py
index 488e51e..9e6b9ae 100644
--- a/tests/test_job.py
+++ b/tests/test_job.py
@@ -8,7 +8,7 @@
 from calrissian.context import CalrissianRuntimeContext
 from calrissian.k8s import CompletionResult
 import threading
-
+from collections import OrderedDict
 
 class SafeNameTestCase(TestCase):
 
@@ -343,6 +343,37 @@ def test_container_resources(self):
             }
         }
         self.assertEqual(expected, resources)
+        
+    def test_gpu_hints(self):
+        self.pod_builder.resources = {'cores': 2, 'ram': 256}
+        self.pod_builder.hints = [OrderedDict([("class", "cwltool:CUDARequirement"), ("cudaVersionMin", '10.0'), ("cudaComputeCapability", '3.0'), ("cudaDeviceCountMin", 1), ("cudaDeviceCountMax", 1)])]
+
+        resources = self.pod_builder.container_resources()
+        expected = {
+            'requests': {
+                'cpu': '2', 
+                'memory': '256Mi',
+                'nvidia.com/gpu': '1'
+            }, 
+            "limits": {
+                'nvidia.com/gpu': '1'
+            }
+        }
+        self.assertEqual(expected, resources)
+        self.pod_builder.hints = [OrderedDict([("class", "cwltool:CUDARequirement"), ("cudaVersionMin", '10.0'), ("cudaComputeCapability", '3.0'), ("cudaDeviceCountMin", 2), ("cudaDeviceCountMax", 4)])]
+
+        resources = self.pod_builder.container_resources()
+        expected = {
+            'requests': {
+                'cpu': '2', 
+                'memory': '256Mi',
+                'nvidia.com/gpu': '2'
+            }, 
+            "limits": {
+                'nvidia.com/gpu': '4'
+            }
+        }
+        self.assertEqual(expected, resources)
 
     def test_string_labels(self):
         self.pod_builder.labels = {'key1': 123}
@@ -637,7 +668,9 @@ def realpath(path):
             mock_read_yaml.return_value,
             mock_read_yaml.return_value,
             job.get_security_context(mock_runtime_context),
-            None
+            None, 
+            job.builder.requirements,
+            job.builder.hints,
         ))
         # calls builder.build
         # returns that