diff --git a/config/latiss/isrLSST.py b/config/latiss/isrLSST.py
new file mode 100644
index 000000000..b6eda30fe
--- /dev/null
+++ b/config/latiss/isrLSST.py
@@ -0,0 +1,31 @@
+# This file is part of obs_lsst.
+#
+# Developed for the LSST Data Management System.
+# This product includes software developed by the LSST Project
+# (http://www.lsst.org).
+# See the COPYRIGHT file at the top-level directory of this distribution
+# for details of code ownership.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the LSST License Statement and
+# the GNU General Public License along with this program.  If not,
+# see <http://www.lsstcorp.org/LegalNotices/>.
+"""
+LATISS-specific overrides for IsrTaskLSST
+"""
+config.overscanCamera.defaultDetectorConfig.defaultAmpConfig.saturation = 120000
+
+config.crosstalk.doQuadraticCrosstalkCorrection = False
+config.doDeferredCharge = False
+config.doBrighterFatter = False
+
+config.cameraKeywordsToCompare = ["SEQNAME", "SEQFILE", "SEQCKSUM", "ODP", "AP0_RC", "TEMP_SET"]
diff --git a/python/lsst/obs/lsst/script/write_latiss_crosstalk_coeffs.py b/python/lsst/obs/lsst/script/write_latiss_crosstalk_coeffs.py
new file mode 100644
index 000000000..0f5ffc8fb
--- /dev/null
+++ b/python/lsst/obs/lsst/script/write_latiss_crosstalk_coeffs.py
@@ -0,0 +1,55 @@
+# This file is part of obs_lsst.
+#
+# Developed for the LSST Data Management System.
+# This product includes software developed by the LSST Project
+# (https://www.lsst.org).
+# See the COPYRIGHT file at the top-level directory of this distribution
+# for details of code ownership.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+import re
+import os
+import dateutil.parser
+from lsst.daf.butler import Butler
+import lsst.utils
+
+
+crosstalk_run = "u/czw/DM-37819/crosstalkGen.20230601a/20230601T201929Z"
+
+butler = Butler("/repo/embargo")
+
+camera = butler.get("camera", instrument="LATISS", collections=["LATISS/calib"])
+crosstalk = butler.get("crosstalk", instrument="LATISS", detector=0, collections=[crosstalk_run])
+
+det = camera[0]
+name = det.getName()
+
+# Make this valid for all time.
+valid_start = "1970-01-01T00:00:00"
+valid_date = dateutil.parser.parse(valid_start)
+datestr = "".join(re.split(r"[:-]", valid_date.isoformat()))
+directory = lsst.utils.getPackageDir("obs_lsst_data")
+out_path = os.path.join(directory, "latiss", "crosstalk", name.lower())
+os.makedirs(out_path, exist_ok=True)
+out_file = os.path.join(out_path, datestr + ".ecsv")
+
+crosstalk.updateMetadata(
+    camera=camera,
+    detector=det,
+    setCalibId=True,
+    setCalibInfo=True,
+    CALIBDATE=valid_start,
+)
+
+crosstalk.writeText(out_file)