diff --git a/tracker/fieldcreate.py b/tracker/fieldcreate.py
new file mode 100644
index 0000000..ead72ad
--- /dev/null
+++ b/tracker/fieldcreate.py
@@ -0,0 +1,220 @@
+# Copyright 2016 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file or at
+# https://developers.google.com/open-source/licenses/bsd
+
+"""A servlet for project owners to create a new field def."""
+from __future__ import print_function
+from __future__ import division
+from __future__ import absolute_import
+
+import logging
+import re
+import time
+
+import ezt
+
+from framework import exceptions
+from framework import framework_helpers
+from framework import jsonfeed
+from framework import permissions
+from framework import servlet
+from framework import urls
+from proto import tracker_pb2
+from tracker import field_helpers
+from tracker import tracker_bizobj
+from tracker import tracker_constants
+from tracker import tracker_helpers
+
+
+class FieldCreate(servlet.Servlet):
+  """Servlet allowing project owners to create a custom field."""
+
+  _MAIN_TAB_MODE = servlet.Servlet.MAIN_TAB_PROCESS
+  _PAGE_TEMPLATE = 'tracker/field-create-page.ezt'
+
+  def AssertBasePermission(self, mr):
+    """Check whether the user has any permission to visit this page.
+
+    Args:
+      mr: commonly used info parsed from the request.
+    """
+    super(FieldCreate, self).AssertBasePermission(mr)
+    if not self.CheckPerm(mr, permissions.EDIT_PROJECT):
+      raise permissions.PermissionException(
+          'You are not allowed to administer this project')
+
+  def GatherPageData(self, mr):
+    """Build up a dictionary of data values to use when rendering the page.
+
+    Args:
+      mr: commonly used info parsed from the request.
+
+    Returns:
+      Dict of values used by EZT for rendering the page.
+    """
+    config = self.services.config.GetProjectConfig(mr.cnxn, mr.project_id)
+    well_known_issue_types = tracker_helpers.FilterIssueTypes(config)
+    approval_names = [fd.field_name for fd in config.field_defs if
+                      fd.field_type is tracker_pb2.FieldTypes.APPROVAL_TYPE and
+                      not fd.is_deleted]
+
+    return {
+        'admin_tab_mode': servlet.Servlet.PROCESS_TAB_LABELS,
+        'initial_field_name': '',
+        'initial_field_docstring': '',
+        'initial_importance': 'normal',
+        'initial_is_multivalued': ezt.boolean(False),
+        'initial_parent_approval_name': '',
+        'initial_choices': '',
+        'initial_admins': '',
+        'initial_editors': '',
+        'initial_type': 'enum_type',
+        'initial_applicable_type': '',  # That means any issue type
+        'initial_applicable_predicate': '',
+        'initial_needs_member': ezt.boolean(False),
+        'initial_needs_perm': '',
+        'initial_grants_perm': '',
+        'initial_notify_on': 0,
+        'initial_date_action': 'no_action',
+        'well_known_issue_types': well_known_issue_types,
+        'initial_approvers': '',
+        'initial_survey': '',
+        'approval_names': approval_names,
+        'initial_is_phase_field': ezt.boolean(False),
+        'initial_is_restricted_field': ezt.boolean(False),
+    }
+
+  def ProcessFormData(self, mr, post_data):
+    """Validate and store the contents of the issues tracker admin page.
+
+    Args:
+      mr: commonly used info parsed from the request.
+      post_data: HTML form data from the request.
+
+    Returns:
+      String URL to redirect the user to, or None if response was already sent.
+    """
+    config = self.services.config.GetProjectConfig(mr.cnxn, mr.project_id)
+    parsed = field_helpers.ParseFieldDefRequest(post_data, config)
+
+    if not tracker_constants.FIELD_NAME_RE.match(parsed.field_name):
+      mr.errors.field_name = 'Invalid field name'
+
+    field_name_error_msg = FieldNameErrorMessage(parsed.field_name, config)
+    if field_name_error_msg:
+      mr.errors.field_name = field_name_error_msg
+
+    admin_ids, admin_str = tracker_helpers.ParsePostDataUsers(
+        mr.cnxn, post_data['admin_names'], self.services.user)
+    editor_ids, editor_str = tracker_helpers.ParsePostDataUsers(
+        mr.cnxn, post_data.get('editor_names', ''), self.services.user)
+
+    field_helpers.ParsedFieldDefAssertions(mr, parsed)
+
+    if not (parsed.is_restricted_field):
+      assert not editor_ids, 'Editors are only for restricted fields.'
+
+    # TODO(crbug/monorail/7275): This condition could potentially be
+    # included in the field_helpers.ParsedFieldDefAssertions method,
+    # just remember that it should be compatible with its usage in
+    # fielddetail.py where there is a very similar condition.
+    if parsed.field_type_str == 'approval_type':
+      assert not (
+          parsed.is_restricted_field), 'Approval fields cannot be restricted.'
+      if parsed.approvers_str:
+        approver_ids_dict = self.services.user.LookupUserIDs(
+            mr.cnxn, re.split('[,;\s]+', parsed.approvers_str),
+            autocreate=True)
+        approver_ids = list(set(approver_ids_dict.values()))
+      else:
+        mr.errors.approvers = 'Please provide at least one default approver.'
+
+    if mr.errors.AnyErrors():
+      self.PleaseCorrect(
+          mr,
+          initial_field_name=parsed.field_name,
+          initial_type=parsed.field_type_str,
+          initial_parent_approval_name=parsed.parent_approval_name,
+          initial_field_docstring=parsed.field_docstring,
+          initial_applicable_type=parsed.applicable_type,
+          initial_applicable_predicate=parsed.applicable_predicate,
+          initial_needs_member=ezt.boolean(parsed.needs_member),
+          initial_needs_perm=parsed.needs_perm,
+          initial_importance=parsed.importance,
+          initial_is_multivalued=ezt.boolean(parsed.is_multivalued),
+          initial_grants_perm=parsed.grants_perm,
+          initial_notify_on=parsed.notify_on,
+          initial_date_action=parsed.date_action_str,
+          initial_choices=parsed.choices_text,
+          initial_approvers=parsed.approvers_str,
+          initial_survey=parsed.survey,
+          initial_is_phase_field=parsed.is_phase_field,
+          initial_admins=admin_str,
+          initial_editors=editor_str,
+          initial_is_restricted_field=parsed.is_restricted_field)
+      return
+
+    approval_id = None
+    if parsed.parent_approval_name and (
+        parsed.field_type_str != 'approval_type'):
+      approval_fd = tracker_bizobj.FindFieldDef(
+          parsed.parent_approval_name, config)
+      if approval_fd:
+        approval_id = approval_fd.field_id
+    field_id = self.services.config.CreateFieldDef(
+        mr.cnxn,
+        mr.project_id,
+        parsed.field_name,
+        parsed.field_type_str,
+        parsed.applicable_type,
+        parsed.applicable_predicate,
+        parsed.is_required,
+        parsed.is_niche,
+        parsed.is_multivalued,
+        parsed.min_value,
+        parsed.max_value,
+        parsed.regex,
+        parsed.needs_member,
+        parsed.needs_perm,
+        parsed.grants_perm,
+        parsed.notify_on,
+        parsed.date_action_str,
+        parsed.field_docstring,
+        admin_ids,
+        editor_ids,
+        approval_id,
+        parsed.is_phase_field,
+        is_restricted_field=parsed.is_restricted_field)
+    if parsed.field_type_str == 'approval_type':
+      revised_approvals = field_helpers.ReviseApprovals(
+          field_id, approver_ids, parsed.survey, config)
+      self.services.config.UpdateConfig(
+          mr.cnxn, mr.project, approval_defs=revised_approvals)
+    if parsed.field_type_str == 'enum_type':
+      self.services.config.UpdateConfig(
+          mr.cnxn, mr.project, well_known_labels=parsed.revised_labels)
+
+    return framework_helpers.FormatAbsoluteURL(
+        mr, urls.ADMIN_LABELS, saved=1, ts=int(time.time()))
+
+
+def FieldNameErrorMessage(field_name, config):
+  """Return an error message for the given field name, or None."""
+  field_name_lower = field_name.lower()
+  if field_name_lower in tracker_constants.RESERVED_PREFIXES:
+    return 'That name is reserved.'
+  if field_name_lower.endswith(
+      tuple(tracker_constants.RESERVED_COL_NAME_SUFFIXES)):
+    return 'That suffix is reserved.'
+
+  for fd in config.field_defs:
+    fn_lower = fd.field_name.lower()
+    if field_name_lower == fn_lower:
+      return 'That name is already in use.'
+    if field_name_lower.startswith(fn_lower + '-'):
+      return 'An existing field name is a prefix of that name.'
+    if fn_lower.startswith(field_name_lower + '-'):
+      return 'That name is a prefix of an existing field name.'
+
+  return None