diff --git a/alembic/versions/c1d074288e99_create_environment_roles_table.py b/alembic/versions/c1d074288e99_create_environment_roles_table.py
new file mode 100644
index 00000000..ac1ea1ea
--- /dev/null
+++ b/alembic/versions/c1d074288e99_create_environment_roles_table.py
@@ -0,0 +1,38 @@
+"""create environment_roles table
+
+Revision ID: c1d074288e99
+Revises: 06aa23166ca9
+Create Date: 2018-09-06 13:40:12.332241
+
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+# revision identifiers, used by Alembic.
+revision = 'c1d074288e99'
+down_revision = '06aa23166ca9'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('environment_roles',
+    sa.Column('id', postgresql.UUID(as_uuid=True), server_default=sa.text('uuid_generate_v4()'), nullable=False),
+    sa.Column('environment_id', postgresql.UUID(as_uuid=True), nullable=True),
+    sa.Column('role', sa.String(), nullable=True),
+    sa.Column('user_id', postgresql.UUID(as_uuid=True), nullable=True),
+    sa.ForeignKeyConstraint(['environment_id'], ['environments.id'], ),
+    sa.ForeignKeyConstraint(['user_id'], ['users.id'], ),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index('environments_role_user_environment', 'environment_roles', ['user_id', 'environment_id'], unique=True)
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_index('environments_role_user_environment', table_name='environment_roles')
+    op.drop_table('environment_roles')
+    # ### end Alembic commands ###
diff --git a/atst/models/environment_role.py b/atst/models/environment_role.py
new file mode 100644
index 00000000..7f36fe73
--- /dev/null
+++ b/atst/models/environment_role.py
@@ -0,0 +1,32 @@
+from enum import Enum
+from sqlalchemy import Index, ForeignKey, Column, String
+from sqlalchemy.dialects.postgresql import UUID
+from sqlalchemy.orm import relationship
+
+from atst.models import Base
+from .types import Id
+
+
+class CSPRole(Enum):
+    NONSENSE_ROLE = "nonesense_role"
+
+
+class EnvironmentRole(Base):
+    __tablename__ = "environment_roles"
+
+    id = Id()
+    environment_id = Column(UUID(as_uuid=True), ForeignKey("environments.id"))
+    environment = relationship("Environment", backref="roles")
+
+    role = Column(String())
+
+    user_id = Column(UUID(as_uuid=True), ForeignKey("users.id"))
+    user = relationship("User", backref="environment_roles")
+
+
+Index(
+    "environments_role_user_environment",
+    EnvironmentRole.user_id,
+    EnvironmentRole.environment_id,
+    unique=True,
+)