diff --git a/app/models/region.rb b/app/models/region.rb
index 8147fed..2c57e79 100644
--- a/app/models/region.rb
+++ b/app/models/region.rb
@@ -1,3 +1,8 @@
 class Region < ActiveRecord::Base
-
+  has_many :sub_regions, class_name: 'Region', foreign_key: 'super_region_id'
+  
+  belongs_to :super_region, class_name: 'Region'
+  
+  validates :name, presence: true, uniqueness: true
+  validates :abbreviation, uniqueness: true, allow_nil: true
 end
\ No newline at end of file
diff --git a/app/models/region_group.rb b/app/models/region_group.rb
deleted file mode 100644
index 8f83a83..0000000
--- a/app/models/region_group.rb
+++ /dev/null
@@ -1,3 +0,0 @@
-class RegionGroup < ActiveRecord::Base
-
-end
\ No newline at end of file
diff --git a/db/migrate/20170201194502_remove_region_group_and_add_super_region_id_to_regions.rb b/db/migrate/20170201194502_remove_region_group_and_add_super_region_id_to_regions.rb
new file mode 100644
index 0000000..07a1e1d
--- /dev/null
+++ b/db/migrate/20170201194502_remove_region_group_and_add_super_region_id_to_regions.rb
@@ -0,0 +1,7 @@
+class RemoveRegionGroupAndAddSuperRegionIdToRegions < ActiveRecord::Migration
+  def change
+    drop_table :region_groups if table_exists?(:region_groups)
+    
+    add_column :regions, :super_region_id, :integer unless column_exists?(:regions, :super_region_id)
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 87b1514..90ab057 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -11,60 +11,61 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20170130173612) do
-
-  # These are extensions that must be enabled in order to support this database
-  enable_extension "plpgsql"
+ActiveRecord::Schema.define(version: 20170201194502) do
 
   create_table "answers", force: :cascade do |t|
-    t.text     "text"
-    t.integer  "plan_id"
-    t.integer  "user_id"
-    t.integer  "question_id"
+    t.text     "text",        limit: 65535
+    t.integer  "plan_id",     limit: 4
+    t.integer  "user_id",     limit: 4
+    t.integer  "question_id", limit: 4
     t.datetime "created_at"
     t.datetime "updated_at"
   end
 
+  add_index "answers", ["plan_id"], name: "fk_rails_84a6005a3e", using: :btree
+  add_index "answers", ["question_id"], name: "fk_rails_3d5ed4418f", using: :btree
+  add_index "answers", ["user_id"], name: "fk_rails_584be190c2", using: :btree
+
   create_table "answers_question_options", id: false, force: :cascade do |t|
-    t.integer "answer_id",          null: false
-    t.integer "question_option_id", null: false
+    t.integer "answer_id",          limit: 4, null: false
+    t.integer "question_option_id", limit: 4, null: false
   end
 
   add_index "answers_question_options", ["answer_id", "question_option_id"], name: "answer_question_option_index", using: :btree
   add_index "answers_question_options", ["question_option_id", "answer_id"], name: "question_option_answer_index", using: :btree
 
   create_table "exported_plans", force: :cascade do |t|
-    t.integer  "plan_id"
-    t.integer  "user_id"
-    t.string   "format"
-    t.datetime "created_at", null: false
-    t.datetime "updated_at", null: false
+    t.integer  "plan_id",    limit: 4
+    t.integer  "user_id",    limit: 4
+    t.string   "format",     limit: 255
+    t.datetime "created_at"
+    t.datetime "updated_at"
   end
 
   create_table "file_types", force: :cascade do |t|
-    t.string   "name"
-    t.string   "icon_name"
-    t.integer  "icon_size"
-    t.string   "icon_location"
-    t.datetime "created_at",    null: false
-    t.datetime "updated_at",    null: false
+    t.string   "name",          limit: 255
+    t.string   "icon_name",     limit: 255
+    t.integer  "icon_size",     limit: 4
+    t.string   "icon_location", limit: 255
+    t.datetime "created_at"
+    t.datetime "updated_at"
   end
 
   create_table "file_uploads", force: :cascade do |t|
-    t.string   "name"
-    t.string   "title"
-    t.text     "description"
-    t.integer  "size"
+    t.string   "name",         limit: 255
+    t.string   "title",        limit: 255
+    t.text     "description",  limit: 65535
+    t.integer  "size",         limit: 4
     t.boolean  "published"
-    t.string   "location"
-    t.integer  "file_type_id"
-    t.datetime "created_at",   null: false
-    t.datetime "updated_at",   null: false
+    t.string   "location",     limit: 255
+    t.integer  "file_type_id", limit: 4
+    t.datetime "created_at"
+    t.datetime "updated_at"
   end
 
   create_table "friendly_id_slugs", force: :cascade do |t|
-    t.string   "slug",                      null: false
-    t.integer  "sluggable_id",              null: false
+    t.string   "slug",           limit: 255, null: false
+    t.integer  "sluggable_id",   limit: 4,   null: false
     t.string   "sluggable_type", limit: 40
     t.datetime "created_at"
   end
@@ -74,293 +75,329 @@
   add_index "friendly_id_slugs", ["sluggable_type"], name: "index_friendly_id_slugs_on_sluggable_type", using: :btree
 
   create_table "guidance_groups", force: :cascade do |t|
-    t.string   "name"
-    t.integer  "org_id"
-    t.datetime "created_at",      null: false
-    t.datetime "updated_at",      null: false
+    t.string   "name",            limit: 255
+    t.integer  "org_id",          limit: 4
+    t.datetime "created_at"
+    t.datetime "updated_at"
     t.boolean  "optional_subset"
     t.boolean  "published"
   end
 
+  add_index "guidance_groups", ["org_id"], name: "fk_rails_819c1dbbc7", using: :btree
+
   create_table "guidances", force: :cascade do |t|
-    t.text     "text"
-    t.integer  "guidance_group_id"
-    t.datetime "created_at",        null: false
-    t.datetime "updated_at",        null: false
-    t.integer  "question_id"
+    t.text     "text",              limit: 65535
+    t.integer  "guidance_group_id", limit: 4
+    t.datetime "created_at"
+    t.datetime "updated_at"
+    t.integer  "question_id",       limit: 4
     t.boolean  "published"
   end
 
+  add_index "guidances", ["guidance_group_id"], name: "fk_rails_20d29da787", using: :btree
+
   create_table "identifier_schemes", force: :cascade do |t|
-    t.string   "name"
-    t.string   "description"
+    t.string   "name",        limit: 255
+    t.string   "description", limit: 255
     t.boolean  "active"
     t.datetime "created_at"
     t.datetime "updated_at"
   end
 
   create_table "languages", force: :cascade do |t|
-    t.string  "abbreviation"
-    t.string  "description"
-    t.string  "name"
+    t.string  "abbreviation",     limit: 255
+    t.string  "description",      limit: 255
+    t.string  "name",             limit: 255
     t.boolean "default_language"
   end
 
   create_table "notes", force: :cascade do |t|
-    t.integer  "user_id"
-    t.text     "text"
+    t.integer  "user_id",     limit: 4
+    t.text     "text",        limit: 65535
     t.boolean  "archived"
-    t.integer  "answer_id"
-    t.integer  "archived_by"
+    t.integer  "answer_id",   limit: 4
+    t.integer  "archived_by", limit: 4
     t.datetime "created_at"
     t.datetime "updated_at"
   end
 
+  add_index "notes", ["answer_id"], name: "fk_rails_907f8d48bf", using: :btree
+  add_index "notes", ["user_id"], name: "fk_rails_7f2323ad43", using: :btree
+
   create_table "org_token_permissions", force: :cascade do |t|
-    t.integer  "org_id"
-    t.integer  "token_permission_type_id"
+    t.integer  "org_id",                   limit: 4
+    t.integer  "token_permission_type_id", limit: 4
     t.datetime "created_at"
     t.datetime "updated_at"
   end
 
+  add_index "org_token_permissions", ["org_id"], name: "fk_rails_e1db1b22c5", using: :btree
+  add_index "org_token_permissions", ["token_permission_type_id"], name: "fk_rails_2aa265f538", using: :btree
+
   create_table "orgs", force: :cascade do |t|
-    t.string   "name"
-    t.string   "abbreviation"
-    t.string   "target_url"
-    t.string   "wayfless_entity"
-    t.datetime "created_at",                  null: false
-    t.datetime "updated_at",                  null: false
-    t.integer  "parent_id"
+    t.string   "name",            limit: 255
+    t.string   "abbreviation",    limit: 255
+    t.string   "target_url",      limit: 255
+    t.string   "wayfless_entity", limit: 255
+    t.datetime "created_at"
+    t.datetime "updated_at"
+    t.integer  "parent_id",       limit: 4
     t.boolean  "is_other"
-    t.string   "sort_name"
-    t.text     "banner_text"
-    t.string   "logo_file_name"
-    t.integer  "region_id"
-    t.integer  "language_id"
-    t.string   "logo_uid"
-    t.string   "logo_name"
-    t.string   "contact_email"
-    t.integer  "org_type",        default: 0, null: false
+    t.string   "sort_name",       limit: 255
+    t.text     "banner_text",     limit: 65535
+    t.string   "logo_file_name",  limit: 255
+    t.integer  "region_id",       limit: 4
+    t.integer  "language_id",     limit: 4
+    t.string   "logo_uid",        limit: 255
+    t.string   "logo_name",       limit: 255
+    t.string   "contact_email",   limit: 255
+    t.integer  "org_type",        limit: 4,     default: 0, null: false
   end
 
+  add_index "orgs", ["language_id"], name: "fk_rails_5640112cab", using: :btree
+  add_index "orgs", ["region_id"], name: "fk_rails_5a6adf6bab", using: :btree
+
   create_table "perms", force: :cascade do |t|
-    t.string   "name"
-    t.datetime "created_at", null: false
-    t.datetime "updated_at", null: false
+    t.string   "name",       limit: 255
+    t.datetime "created_at"
+    t.datetime "updated_at"
   end
 
   add_index "perms", ["name"], name: "index_perms_on_name", using: :btree
   add_index "perms", ["name"], name: "index_roles_on_name_and_resource_type_and_resource_id", using: :btree
 
   create_table "phases", force: :cascade do |t|
-    t.string   "title"
-    t.text     "description"
-    t.integer  "number"
-    t.integer  "template_id"
+    t.string   "title",       limit: 255
+    t.text     "description", limit: 65535
+    t.integer  "number",      limit: 4
+    t.integer  "template_id", limit: 4
     t.datetime "created_at"
     t.datetime "updated_at"
-    t.string   "slug"
+    t.string   "slug",        limit: 255
     t.boolean  "modifiable"
   end
 
+  add_index "phases", ["template_id"], name: "fk_rails_0f8036cb2e", using: :btree
+
   create_table "plans", force: :cascade do |t|
-    t.integer  "project_id"
-    t.string   "title"
-    t.integer  "template_id"
+    t.integer  "project_id",                        limit: 4
+    t.string   "title",                             limit: 255
+    t.integer  "template_id",                       limit: 4
     t.datetime "created_at"
     t.datetime "updated_at"
-    t.string   "slug"
-    t.string   "grant_number"
-    t.string   "identifier"
-    t.text     "description"
-    t.string   "principal_investigator"
-    t.string   "principal_investigator_identifier"
-    t.string   "data_contact"
-    t.string   "funder_name"
-    t.integer  "visibility",                        default: 0, null: false
+    t.string   "slug",                              limit: 255
+    t.string   "grant_number",                      limit: 255
+    t.string   "identifier",                        limit: 255
+    t.text     "description",                       limit: 65535
+    t.string   "principal_investigator",            limit: 255
+    t.string   "principal_investigator_identifier", limit: 255
+    t.string   "data_contact",                      limit: 255
+    t.string   "funder_name",                       limit: 255
+    t.integer  "visibility",                        limit: 4,     default: 0, null: false
   end
 
+  add_index "plans", ["template_id"], name: "fk_rails_3424ca281f", using: :btree
+
   create_table "question_formats", force: :cascade do |t|
-    t.string   "title"
-    t.text     "description"
-    t.datetime "created_at",                   null: false
-    t.datetime "updated_at",                   null: false
-    t.boolean  "option_based", default: false
+    t.string   "title",        limit: 255
+    t.text     "description",  limit: 65535
+    t.datetime "created_at"
+    t.datetime "updated_at"
+    t.boolean  "option_based",               default: false
   end
 
   create_table "question_options", force: :cascade do |t|
-    t.integer  "question_id"
-    t.string   "text"
-    t.integer  "number"
+    t.integer  "question_id", limit: 4
+    t.string   "text",        limit: 255
+    t.integer  "number",      limit: 4
     t.boolean  "is_default"
     t.datetime "created_at"
     t.datetime "updated_at"
   end
 
+  add_index "question_options", ["question_id"], name: "fk_rails_b9c5f61cf9", using: :btree
+
   create_table "questions", force: :cascade do |t|
-    t.text     "text"
-    t.text     "default_value"
-    t.text     "guidance"
-    t.integer  "number"
-    t.integer  "section_id"
+    t.text     "text",                   limit: 65535
+    t.text     "default_value",          limit: 65535
+    t.text     "guidance",               limit: 65535
+    t.integer  "number",                 limit: 4
+    t.integer  "section_id",             limit: 4
     t.datetime "created_at"
     t.datetime "updated_at"
-    t.integer  "question_format_id"
-    t.boolean  "option_comment_display", default: true
+    t.integer  "question_format_id",     limit: 4
+    t.boolean  "option_comment_display",               default: true
     t.boolean  "modifiable"
   end
 
+  add_index "questions", ["question_format_id"], name: "fk_rails_4fbc38c8c7", using: :btree
+  add_index "questions", ["section_id"], name: "fk_rails_c50eadc3e3", using: :btree
+
   create_table "questions_themes", id: false, force: :cascade do |t|
-    t.integer "question_id", null: false
-    t.integer "theme_id",    null: false
+    t.integer "question_id", limit: 4, null: false
+    t.integer "theme_id",    limit: 4, null: false
   end
 
   add_index "questions_themes", ["question_id", "theme_id"], name: "question_theme_index", using: :btree
   add_index "questions_themes", ["theme_id", "question_id"], name: "theme_question_index", using: :btree
 
-  create_table "region_groups", force: :cascade do |t|
-    t.integer "super_region_id"
-    t.integer "region_id"
-  end
-
   create_table "regions", force: :cascade do |t|
-    t.string "abbreviation"
-    t.string "description"
-    t.string "name"
+    t.string  "abbreviation",    limit: 255
+    t.string  "description",     limit: 255
+    t.string  "name",            limit: 255
+    t.integer "super_region_id", limit: 4
   end
 
   create_table "roles", force: :cascade do |t|
-    t.integer  "user_id"
-    t.integer  "plan_id"
+    t.integer  "user_id",    limit: 4
+    t.integer  "plan_id",    limit: 4
     t.datetime "created_at"
     t.datetime "updated_at"
-    t.integer  "access",     default: 0, null: false
+    t.integer  "access",     limit: 4, default: 0, null: false
   end
 
+  add_index "roles", ["plan_id"], name: "fk_rails_a1ce6c2772", using: :btree
+  add_index "roles", ["user_id"], name: "fk_rails_ab35d699f0", using: :btree
+
   create_table "sections", force: :cascade do |t|
-    t.string   "title"
-    t.text     "description"
-    t.integer  "number"
+    t.string   "title",       limit: 255
+    t.text     "description", limit: 65535
+    t.integer  "number",      limit: 4
     t.datetime "created_at"
     t.datetime "updated_at"
     t.boolean  "published"
-    t.integer  "phase_id"
+    t.integer  "phase_id",    limit: 4
     t.boolean  "modifiable"
   end
 
+  add_index "sections", ["phase_id"], name: "fk_rails_1853581585", using: :btree
+
   create_table "settings", force: :cascade do |t|
-    t.string   "var",         null: false
-    t.text     "value"
-    t.integer  "target_id",   null: false
-    t.string   "target_type", null: false
-    t.datetime "created_at",  null: false
-    t.datetime "updated_at",  null: false
+    t.string   "var",         limit: 255,   null: false
+    t.text     "value",       limit: 65535
+    t.integer  "target_id",   limit: 4,     null: false
+    t.string   "target_type", limit: 255,   null: false
+    t.datetime "created_at"
+    t.datetime "updated_at"
   end
 
   add_index "settings", ["target_type", "target_id", "var"], name: "index_settings_on_target_type_and_target_id_and_var", unique: true, using: :btree
 
   create_table "splash_logs", force: :cascade do |t|
-    t.string   "destination"
-    t.datetime "created_at",  null: false
-    t.datetime "updated_at",  null: false
+    t.string   "destination", limit: 255
+    t.datetime "created_at"
+    t.datetime "updated_at"
   end
 
   create_table "suggested_answers", force: :cascade do |t|
-    t.integer  "question_id"
-    t.integer  "org_id"
-    t.text     "text"
+    t.integer  "question_id", limit: 4
+    t.integer  "org_id",      limit: 4
+    t.text     "text",        limit: 65535
     t.boolean  "is_example"
     t.datetime "created_at"
     t.datetime "updated_at"
   end
 
+  add_index "suggested_answers", ["org_id"], name: "fk_rails_473de65779", using: :btree
+  add_index "suggested_answers", ["question_id"], name: "fk_rails_daa60b5b70", using: :btree
+
   create_table "templates", force: :cascade do |t|
-    t.string   "title"
-    t.text     "description"
+    t.string   "title",            limit: 255
+    t.text     "description",      limit: 65535
     t.boolean  "published"
-    t.integer  "org_id"
-    t.string   "locale"
+    t.integer  "org_id",           limit: 4
+    t.string   "locale",           limit: 255
     t.boolean  "is_default"
     t.datetime "created_at"
     t.datetime "updated_at"
-    t.integer  "version"
-    t.integer  "visibility"
-    t.integer  "customization_of"
-    t.integer  "dmptemplate_id"
+    t.integer  "version",          limit: 4
+    t.integer  "visibility",       limit: 4
+    t.integer  "customization_of", limit: 4
+    t.integer  "dmptemplate_id",   limit: 4
   end
 
+  add_index "templates", ["org_id"], name: "fk_rails_481431e1bd", using: :btree
+
   create_table "themes", force: :cascade do |t|
-    t.string   "title"
-    t.text     "description"
-    t.datetime "created_at",  null: false
-    t.datetime "updated_at",  null: false
-    t.string   "locale"
+    t.string   "title",       limit: 255
+    t.text     "description", limit: 65535
+    t.datetime "created_at"
+    t.datetime "updated_at"
+    t.string   "locale",      limit: 255
   end
 
   create_table "themes_in_guidance", id: false, force: :cascade do |t|
-    t.integer "theme_id"
-    t.integer "guidance_id"
+    t.integer "theme_id",    limit: 4
+    t.integer "guidance_id", limit: 4
   end
 
+  add_index "themes_in_guidance", ["guidance_id"], name: "fk_rails_a5ab9402df", using: :btree
+  add_index "themes_in_guidance", ["theme_id"], name: "fk_rails_7d708f6f1e", using: :btree
+
   create_table "token_permission_types", force: :cascade do |t|
-    t.string   "token_type"
-    t.text     "text_description"
+    t.string   "token_type",       limit: 255
+    t.text     "text_description", limit: 65535
     t.datetime "created_at"
     t.datetime "updated_at"
   end
 
   create_table "user_identifiers", force: :cascade do |t|
-    t.string   "identifier"
+    t.string   "identifier",           limit: 255
     t.datetime "created_at"
     t.datetime "updated_at"
-    t.integer  "user_id"
-    t.integer  "identifier_scheme_id"
+    t.integer  "user_id",              limit: 4
+    t.integer  "identifier_scheme_id", limit: 4
   end
 
+  add_index "user_identifiers", ["identifier_scheme_id"], name: "fk_rails_fe95df7db0", using: :btree
+  add_index "user_identifiers", ["user_id"], name: "fk_rails_65c9a98cdb", using: :btree
+
   create_table "users", force: :cascade do |t|
-    t.string   "firstname"
-    t.string   "surname"
-    t.string   "email",                  default: "", null: false
-    t.string   "orcid_id"
-    t.string   "shibboleth_id"
+    t.string   "firstname",              limit: 255
+    t.string   "surname",                limit: 255
+    t.string   "email",                  limit: 255, default: "", null: false
+    t.string   "shibboleth_id",          limit: 255
     t.datetime "created_at"
     t.datetime "updated_at"
-    t.string   "encrypted_password",     default: ""
-    t.string   "reset_password_token"
+    t.string   "encrypted_password",     limit: 255, default: ""
+    t.string   "reset_password_token",   limit: 255
     t.datetime "reset_password_sent_at"
     t.datetime "remember_created_at"
-    t.integer  "sign_in_count",          default: 0
+    t.integer  "sign_in_count",          limit: 4,   default: 0
     t.datetime "current_sign_in_at"
     t.datetime "last_sign_in_at"
-    t.string   "current_sign_in_ip"
-    t.string   "last_sign_in_ip"
-    t.string   "confirmation_token"
+    t.string   "current_sign_in_ip",     limit: 255
+    t.string   "last_sign_in_ip",        limit: 255
+    t.string   "confirmation_token",     limit: 255
     t.datetime "confirmed_at"
     t.datetime "confirmation_sent_at"
-    t.string   "invitation_token"
+    t.string   "invitation_token",       limit: 255
     t.datetime "invitation_created_at"
     t.datetime "invitation_sent_at"
     t.datetime "invitation_accepted_at"
-    t.string   "other_organisation"
+    t.string   "other_organisation",     limit: 255
     t.boolean  "dmponline3"
     t.boolean  "accept_terms"
-    t.integer  "org_id"
-    t.string   "api_token"
-    t.integer  "invited_by_id"
-    t.string   "invited_by_type"
-    t.integer  "language_id"
+    t.integer  "org_id",                 limit: 4
+    t.string   "api_token",              limit: 255
+    t.integer  "invited_by_id",          limit: 4
+    t.string   "invited_by_type",        limit: 255
+    t.integer  "language_id",            limit: 4
   end
 
   add_index "users", ["confirmation_token"], name: "index_users_on_confirmation_token", unique: true, using: :btree
   add_index "users", ["email"], name: "index_users_on_email", unique: true, using: :btree
   add_index "users", ["invitation_token"], name: "index_users_on_invitation_token", unique: true, using: :btree
+  add_index "users", ["language_id"], name: "fk_rails_45f4f12508", using: :btree
+  add_index "users", ["org_id"], name: "fk_rails_e73753bccb", using: :btree
   add_index "users", ["reset_password_token"], name: "index_users_on_reset_password_token", unique: true, using: :btree
 
   create_table "users_perms", id: false, force: :cascade do |t|
-    t.integer "user_id"
-    t.integer "perm_id"
+    t.integer "user_id", limit: 4
+    t.integer "perm_id", limit: 4
   end
 
+  add_index "users_perms", ["perm_id"], name: "fk_rails_457217c31c", using: :btree
   add_index "users_perms", ["user_id", "perm_id"], name: "index_users_perms_on_user_id_and_perm_id", using: :btree
 
   add_foreign_key "answers", "plans"
diff --git a/db/seeds.rb b/db/seeds.rb
index 2467322..216bfda 100644
--- a/db/seeds.rb
+++ b/db/seeds.rb
@@ -73,6 +73,7 @@
   {abbreviation: 'horizon', 
    description: 'European super region',
    name: 'Horizon2020',
+   
    sub_regions: [
      {abbreviation: 'uk',
       description: 'United Kingdom',
@@ -99,12 +100,12 @@
   
   if Region.find_by(abbreviation: r[:abbreviation]).nil?
     region = Region.create!(r) 
-  
+
     unless srs.nil?
       srs.each do |sr|
         if Region.find_by(abbreviation: sr[:abbreviation]).nil?
-          subregion = Region.create!(sr)
-          RegionGroup.create!({region_id: subregion.id, super_region_id: region.id})
+          sr[:super_region] = region
+          Region.create!((sr))
         end
       end
     end
diff --git a/test/unit/region_test.rb b/test/unit/region_test.rb
new file mode 100644
index 0000000..422f8fd
--- /dev/null
+++ b/test/unit/region_test.rb
@@ -0,0 +1,55 @@
+require 'test_helper'
+
+class RegionTest < ActiveSupport::TestCase
+
+  setup do
+    @region = Region.create(name: 'Test Super Region', abbreviation: 'TSR', description: 'Testing')
+    
+    @region.sub_regions = [Region.new(name: 'Test Sub Region 1'), Region.new(name: 'Test Sub Region 2')]
+  end
+
+  # ---------------------------------------------------
+  test "required fields are required" do
+    assert_not Region.new.valid?
+    
+    # Ensure the bar minimum and complete versions are valid
+    a = Region.new(name: 'Test Region')
+    assert a.valid?, "expected the 'name' field to be enough to create an Region! - #{a.errors.map{|f, m| f.to_s + ' ' + m}.join(', ')}"
+  end
+  
+  # ---------------------------------------------------
+  test "name and abbreviation should be unique" do
+    assert_not Region.new(name: 'Test Super Region').valid?, "expected that 'name' must be unique"
+    assert_not Region.new(abbreviation: 'TSR').valid?, "expected that 'abbreviation' must be unique"
+    
+    assert_not Region.new(name: 'Test Super Region', abbreviation: '123').valid?, "expected that 'name' must be unique even if abbreviation is unique"
+    assert_not Region.new(abbreviation: 'TSR', name: 'test super').valid?, "expected that 'abbreviation' must be unique even if name is unique"
+  end
+  
+  # ---------------------------------------------------
+  test "can CRUD Region" do
+    obj = Region.create(name: 'Test Region')
+    assert_not obj.id.nil?, "was expecting to be able to create a new Region: #{obj.errors.map{|f, m| f.to_s + ' ' + m}.join(', ')}"
+
+    obj.abbreviation = 'ABC'
+    obj.save!
+    obj.reload
+    assert_equal 'ABC', obj.abbreviation, "Was expecting to be able to update the text of the Region!"
+  
+    assert obj.destroy!, "Was unable to delete the Region!"
+  end
+    
+  # Need to roll our own here because of the name of the relationship attributes
+  # ---------------------------------------------------
+  test "can manage has_and_belongs_to_many relationship with Region" do
+    count = Region.first.sub_regions.count
+    
+    @region.super_region = Region.first
+    @region.save!
+    
+    # Search the parent for the child
+    assert Region.first.sub_regions.include?(@region), "was expecting the Region.sub_regions to contain the test region"
+    assert_equal (count + 1), Region.first.sub_regions.count
+  end
+  
+end
\ No newline at end of file