diff --git a/openstack/identity/v3/extensions/trusts/requests.go b/openstack/identity/v3/extensions/trusts/requests.go
new file mode 100644
index 0000000..999dd73
--- /dev/null
+++ b/openstack/identity/v3/extensions/trusts/requests.go
@@ -0,0 +1,34 @@
+package trusts
+
+import "github.com/gophercloud/gophercloud/openstack/identity/v3/tokens"
+
+type AuthOptsExt struct {
+	tokens.AuthOptionsBuilder
+	TrustID string `json:"id"`
+}
+
+func (opts AuthOptsExt) ToTokenV3CreateMap(scope map[string]interface{}) (map[string]interface{}, error) {
+	return opts.AuthOptionsBuilder.ToTokenV3CreateMap(scope)
+}
+
+func (opts AuthOptsExt) ToTokenV3ScopeMap() (map[string]interface{}, error) {
+	b, err := opts.AuthOptionsBuilder.ToTokenV3ScopeMap()
+	if err != nil {
+		return nil, err
+	}
+
+	if opts.TrustID != "" {
+		if b == nil {
+			b = make(map[string]interface{})
+		}
+		b["OS-TRUST:trust"] = map[string]interface{}{
+			"id": opts.TrustID,
+		}
+	}
+
+	return b, nil
+}
+
+func (opts AuthOptsExt) CanReauth() bool {
+	return opts.AuthOptionsBuilder.CanReauth()
+}
diff --git a/openstack/identity/v3/extensions/trusts/testing/fixtures.go b/openstack/identity/v3/extensions/trusts/testing/fixtures.go
new file mode 100644
index 0000000..15d5f3f
--- /dev/null
+++ b/openstack/identity/v3/extensions/trusts/testing/fixtures.go
@@ -0,0 +1,41 @@
+package testing
+
+import (
+	"fmt"
+	"net/http"
+	"testing"
+
+	"github.com/gophercloud/gophercloud"
+	"github.com/gophercloud/gophercloud/openstack/identity/v3/tokens"
+	"github.com/gophercloud/gophercloud/testhelper"
+)
+
+// HandleCreateTokenWithTrustID verifies that providing certain AuthOptions and Scope results in an expected JSON structure.
+func HandleCreateTokenWithTrustID(t *testing.T, options tokens.AuthOptionsBuilder, requestJSON string) {
+	testhelper.SetupHTTP()
+	defer testhelper.TeardownHTTP()
+
+	client := gophercloud.ServiceClient{
+		ProviderClient: &gophercloud.ProviderClient{},
+		Endpoint:       testhelper.Endpoint(),
+	}
+
+	testhelper.Mux.HandleFunc("/auth/tokens", func(w http.ResponseWriter, r *http.Request) {
+		testhelper.TestMethod(t, r, "POST")
+		testhelper.TestHeader(t, r, "Content-Type", "application/json")
+		testhelper.TestHeader(t, r, "Accept", "application/json")
+		testhelper.TestJSONRequest(t, r, requestJSON)
+
+		w.WriteHeader(http.StatusCreated)
+		fmt.Fprintf(w, `{
+			"token": {
+				"expires_at": "2014-10-02T13:45:00.000000Z"
+			}
+		}`)
+	})
+
+	_, err := tokens.Create(&client, options).Extract()
+	if err != nil {
+		t.Errorf("Create returned an error: %v", err)
+	}
+}
diff --git a/openstack/identity/v3/extensions/trusts/testing/requests_test.go b/openstack/identity/v3/extensions/trusts/testing/requests_test.go
new file mode 100644
index 0000000..f0e41dc
--- /dev/null
+++ b/openstack/identity/v3/extensions/trusts/testing/requests_test.go
@@ -0,0 +1,35 @@
+package testing
+
+import (
+	"testing"
+
+	"github.com/gophercloud/gophercloud/openstack/identity/v3/extensions/trusts"
+	"github.com/gophercloud/gophercloud/openstack/identity/v3/tokens"
+)
+
+func TestCreateUserIDPasswordTrustID(t *testing.T) {
+	ao := trusts.AuthOptsExt{
+		TrustID: "de0945a",
+		AuthOptionsBuilder: &tokens.AuthOptions{
+			UserID:   "me",
+			Password: "squirrel!",
+		},
+	}
+	HandleCreateTokenWithTrustID(t, ao, `
+		{
+			"auth": {
+				"identity": {
+					"methods": ["password"],
+					"password": {
+						"user": { "id": "me", "password": "squirrel!" }
+					}
+				},
+        "scope": {
+            "OS-TRUST:trust": {
+                "id": "de0945a"
+            }
+        }
+			}
+		}
+	`)
+}