diff --git a/CHANGELOG.md b/CHANGELOG.md
index cdca102c..a03a1c60 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## 6.19.0 - April 5, 2024
+
+* Adds a new CLI tool that can be called to resolve unresolved bill-to-bill relationships in the openstates DB
+
 ## 6.18.5 - March 29, 2024
 
 * other_name in committee matching
diff --git a/README.md b/README.md
index 520ba5c4..60c69e6d 100644
--- a/README.md
+++ b/README.md
@@ -13,6 +13,19 @@ See [RELASE.md](./RELEASE.md)
 
 ## Debugging openstates-core code
 
+### Commands that do not integrate with openstates-scrapers
+
+* Install pyenv and correct python version
+* Install poetry
+* `poetry install`
+
+Example PyCharm config (for `relationships` CLI command):
+
+* Interpeter: the poetry env that you just set up
+* Module: `openstates.cli.relationships`
+* Parameters: `--log_level=DEBUG us`
+* Env vars: `DATABASE_URL=postgres://USERNAME:PASSWORD@DB_HOSTNAME:PORT/openstatesorg`
+
 ### Update command / scrapers
 
 There are
@@ -27,7 +40,7 @@ within `openstates-core`.
 
 Here's a recipe using PyCharm to successfully debug the update command:
 
-#### Requirements to run code natively (not in docker)
+#### Requirements to run the scrape/update code natively (not in docker)
 
 * You need the `gdal` library installed on the host system. For me: `sudo apt install gdal-bin python3-gdal`
 * `openstates-core` checked out at /home/username/repo/openstates/openstates-core/
@@ -37,7 +50,7 @@ Here's a recipe using PyCharm to successfully debug the update command:
 * Install required python version using the `pyenv` utility
 * `pip install poetry` (if that python version doesn't already have it)
 
-#### Debugging natively
+#### Debugging the scrape/update code natively
 
 * If you have previously installed the `openstates` dependency (eg `openstates-core`), then you need
   to run `poetry remove openstates` to clear that remotely-installed (from pypi) dependency. Each time you make a round
diff --git a/openstates/cli/relationships.py b/openstates/cli/relationships.py
new file mode 100644
index 00000000..a495f3eb
--- /dev/null
+++ b/openstates/cli/relationships.py
@@ -0,0 +1,38 @@
+import click
+import logging
+import logging.config
+from openstates.utils import abbr_to_jid
+from ..utils.django import init_django
+from ..exceptions import InternalError
+from .. import settings
+
+
+@click.command(help="Resolve unresolved relationships between entities")
+@click.argument("jurisdiction_abbreviation")
+@click.option(
+    "--log_level",
+    help="Set the level of logging to output.",
+    default="INFO"
+)
+def main(jurisdiction_abbreviation: str, log_level: str) -> None:
+    # set up logging
+    logger = logging.getLogger("openstates")
+    handler_level = log_level
+    settings.LOGGING["handlers"]["default"]["level"] = handler_level  # type: ignore
+    logging.config.dictConfig(settings.LOGGING)
+
+    # set up django for DB access
+    # has to be done before any importer can be imported (?)
+    init_django()
+    from openstates.importers import resolve_related_bills
+
+    logger.info(f"Beginning resolution of bill relationships for {jurisdiction_abbreviation}")
+    jurisdiction_id = abbr_to_jid(jurisdiction_abbreviation)
+    try:
+        resolve_related_bills(jurisdiction_id, logger)
+    except InternalError as e:
+        logger.error(f"Error during bill relationship resolution for {jurisdiction_abbreviation}: {e}")
+
+
+if __name__ == "__main__":
+    main()
diff --git a/openstates/importers/__init__.py b/openstates/importers/__init__.py
index 11c3b45c..43e17689 100644
--- a/openstates/importers/__init__.py
+++ b/openstates/importers/__init__.py
@@ -1,6 +1,6 @@
 # flake8: noqa
 from .jurisdiction import JurisdictionImporter
 from .organizations import OrganizationImporter
-from .bills import BillImporter
+from .bills import BillImporter, resolve_related_bills
 from .vote_events import VoteEventImporter
 from .events import EventImporter
diff --git a/openstates/importers/bills.py b/openstates/importers/bills.py
index ec67dfb3..8ace52d0 100644
--- a/openstates/importers/bills.py
+++ b/openstates/importers/bills.py
@@ -20,6 +20,39 @@
 from .organizations import OrganizationImporter
 
 
+def resolve_related_bills(jurisdiction_id, logger) -> None:
+    # go through all RelatedBill objs that are attached to a bill in this jurisdiction and
+    # are currently unresolved
+    related_bills = RelatedBill.objects.filter(
+        bill__legislative_session__jurisdiction_id=jurisdiction_id,
+        related_bill=None,
+    )
+    logger.info(f"Found {len(related_bills)} unresolved bill relationships")
+    matches_found = 0
+    for rb in related_bills:
+        candidates = list(
+            Bill.objects.filter(
+                legislative_session__identifier=rb.legislative_session,
+                legislative_session__jurisdiction_id=jurisdiction_id,
+                identifier=rb.identifier,
+            )
+        )
+        if len(candidates) == 1:
+            rb.related_bill = candidates[0]
+            rb.save()
+            matches_found += 1
+            logger.debug(f"Resolved {rb.legislative_session} {rb.bill.identifier}")
+        elif len(candidates) > 1:  # pragma: no cover
+            # if we ever see this, we need to add additional fields on the relation
+            raise InternalError(
+                "multiple related_bill candidates found for {}".format(rb)
+            )
+        else:
+            logger.debug(f"FAILED to resolve {rb.legislative_session} {rb.bill.identifier}")
+
+    logger.info(f"Resolved {matches_found} bills out of {len(related_bills)} bills needing resolution")
+
+
 class BillImporter(BaseImporter):
     _type = "bill"
     model_class = Bill
@@ -106,27 +139,7 @@ def prepare_for_db(self, data: _JsonDict) -> _JsonDict:
         return data
 
     def postimport(self) -> None:
-        # go through all RelatedBill objs that are attached to a bill in this jurisdiction and
-        # are currently unresolved
-        for rb in RelatedBill.objects.filter(
-            bill__legislative_session__jurisdiction_id=self.jurisdiction_id,
-            related_bill=None,
-        ):
-            candidates = list(
-                Bill.objects.filter(
-                    legislative_session__identifier=rb.legislative_session,
-                    legislative_session__jurisdiction_id=self.jurisdiction_id,
-                    identifier=rb.identifier,
-                )
-            )
-            if len(candidates) == 1:
-                rb.related_bill = candidates[0]
-                rb.save()
-            elif len(candidates) > 1:  # pragma: no cover
-                # if we ever see this, we need to add additional fields on the relation
-                raise InternalError(
-                    "multiple related_bill candidates found for {}".format(rb)
-                )
+        resolve_related_bills(self.jurisdiction_id, self.logger)
 
     def update_computed_fields(self, obj: Model) -> None:
         update_bill_fields(obj, save=False)
diff --git a/poetry.lock b/poetry.lock
index 255dcc84..9f96ab46 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1514,13 +1514,13 @@ XlsxWriter = ">=0.5.7"
 
 [[package]]
 name = "pytz"
-version = "2023.3"
+version = "2024.1"
 description = "World timezone definitions, modern and historical"
 optional = false
 python-versions = "*"
 files = [
-    {file = "pytz-2023.3-py2.py3-none-any.whl", hash = "sha256:a151b3abb88eda1d4e34a9814df37de2a80e301e68ba0fd856fb9b46bfbbbffb"},
-    {file = "pytz-2023.3.tar.gz", hash = "sha256:1d8ce29db189191fb55338ee6d0387d82ab59f3d00eac103412d64e0ebd0c588"},
+    {file = "pytz-2024.1-py2.py3-none-any.whl", hash = "sha256:328171f4e3623139da4983451950b28e95ac706e13f3f2630a879749e7a8b319"},
+    {file = "pytz-2024.1.tar.gz", hash = "sha256:2a29735ea9c18baf14b448846bde5a48030ed267578472d8955cd0e7443a9812"},
 ]
 
 [[package]]
@@ -1535,6 +1535,7 @@ files = [
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+    {file = "PyYAML-6.0.1-cp310-cp310-musllinux_1_1_x86_64.whl", hash = "sha256:326c013efe8048858a6d312ddd31d56e468118ad4cdeda36c719bf5bb6192290"},
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@@ -1542,8 +1543,15 @@ files = [
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+    {file = "PyYAML-6.0.1-cp311-cp311-musllinux_1_1_x86_64.whl", hash = "sha256:e7d73685e87afe9f3b36c799222440d6cf362062f78be1013661b00c5c6f678b"},
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+    {file = "PyYAML-6.0.1-cp312-cp312-macosx_10_9_x86_64.whl", hash = "sha256:855fb52b0dc35af121542a76b9a84f8d1cd886ea97c84703eaa6d88e37a2ad28"},
+    {file = "PyYAML-6.0.1-cp312-cp312-macosx_11_0_arm64.whl", hash = "sha256:40df9b996c2b73138957fe23a16a4f0ba614f4c0efce1e9406a184b6d07fa3a9"},
+    {file = "PyYAML-6.0.1-cp312-cp312-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:6c22bec3fbe2524cde73d7ada88f6566758a8f7227bfbf93a408a9d86bcc12a0"},
+    {file = "PyYAML-6.0.1-cp312-cp312-musllinux_1_1_x86_64.whl", hash = "sha256:8d4e9c88387b0f5c7d5f281e55304de64cf7f9c0021a3525bd3b1c542da3b0e4"},
+    {file = "PyYAML-6.0.1-cp312-cp312-win32.whl", hash = "sha256:d483d2cdf104e7c9fa60c544d92981f12ad66a457afae824d146093b8c294c54"},
+    {file = "PyYAML-6.0.1-cp312-cp312-win_amd64.whl", hash = "sha256:0d3304d8c0adc42be59c5f8a4d9e3d7379e6955ad754aa9d6ab7a398b59dd1df"},
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     {file = "PyYAML-6.0.1-cp36-cp36m-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:1fe35611261b29bd1de0070f0b2f47cb6ff71fa6595c077e42bd0c419fa27b98"},
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@@ -1560,6 +1568,7 @@ files = [
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     {file = "PyYAML-6.0.1-cp38-cp38-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:7e07cbde391ba96ab58e532ff4803f79c4129397514e1413a7dc761ccd755735"},
+    {file = "PyYAML-6.0.1-cp38-cp38-musllinux_1_1_x86_64.whl", hash = "sha256:49a183be227561de579b4a36efbb21b3eab9651dd81b1858589f796549873dd6"},
     {file = "PyYAML-6.0.1-cp38-cp38-win32.whl", hash = "sha256:184c5108a2aca3c5b3d3bf9395d50893a7ab82a38004c8f61c258d4428e80206"},
     {file = "PyYAML-6.0.1-cp38-cp38-win_amd64.whl", hash = "sha256:1e2722cc9fbb45d9b87631ac70924c11d3a401b2d7f410cc0e3bbf249f2dca62"},
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@@ -1567,6 +1576,7 @@ files = [
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+    {file = "PyYAML-6.0.1-cp39-cp39-musllinux_1_1_x86_64.whl", hash = "sha256:04ac92ad1925b2cff1db0cfebffb6ffc43457495c9b3c39d3fcae417d7125dc5"},
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     {file = "PyYAML-6.0.1.tar.gz", hash = "sha256:bfdf460b1736c775f2ba9f6a92bca30bc2095067b8a9d77876d1fad6cc3b4a43"},
@@ -1984,4 +1994,4 @@ files = [
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.9"
-content-hash = "4ca23b11ba7cf90da3df2c2edc6f885e9119e4f86bf2b9e9e87df03773ea0fd1"
+content-hash = "5401631123ef5bb9ec65c12645826f395de4b61d9f1217d8bb57d5e274b61339"
diff --git a/pyproject.toml b/pyproject.toml
index e0b348e5..18c9748f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "openstates"
-version = "6.18.5"
+version = "6.19.0"
 description = "core infrastructure for the openstates project"
 authors = ["James Turk <dev@jamesturk.net>"]
 license = "MIT"
@@ -13,6 +13,7 @@ os-text-extract = 'openstates.cli.text_extract:main'
 os-people = 'openstates.cli.people:main'
 os-committees = 'openstates.cli.committees:main'
 os-us-to-yaml = 'openstates.cli.convert_us:main'
+os-relationships = 'openstates.cli.relationships:main'
 os-scrape = 'openstates.cli.scrape:main'
 os-validate = 'openstates.cli.validate:main'
 
@@ -34,6 +35,7 @@ PyJWT = "^2.5.0"
 boto3 = "^1.26.61"
 us = "^3.1.1"
 influxdb-client = "^1.37.0"
+pytz = "^2024.1"
 
 [tool.poetry.dev-dependencies]
 pytest = "^5.4.1"