diff --git a/tests/test_zppy_global_time_series.py b/tests/test_zppy_global_time_series.py
index 86c2c834..6be322ce 100644
--- a/tests/test_zppy_global_time_series.py
+++ b/tests/test_zppy_global_time_series.py
@@ -9,7 +9,6 @@ def test_determine_components():
     c: Dict[str, Any]
     # Test non-legacy
     c = {
-        "plot_names": "",
         "plots_original": "",
         "plots_atm": ["a"],
         "plots_ice": "",
@@ -27,7 +26,6 @@ def test_determine_components():
     assert c["plots_ocn"] == "None"
 
     c = {
-        "plot_names": "",
         "plots_original": "",
         "plots_atm": "",
         "plots_ice": ["a"],
@@ -45,7 +43,6 @@ def test_determine_components():
     assert c["plots_ocn"] == "None"
 
     c = {
-        "plot_names": "",
         "plots_original": "",
         "plots_atm": "",
         "plots_ice": "",
@@ -63,7 +60,6 @@ def test_determine_components():
     assert c["plots_ocn"] == "None"
 
     c = {
-        "plot_names": "",
         "plots_original": "",
         "plots_atm": "",
         "plots_ice": "",
@@ -80,57 +76,6 @@ def test_determine_components():
     assert c["plots_lnd"] == "None"
     assert c["plots_ocn"] == ["a"]
 
-    # Test legacy
-    base = {"plots_atm": "", "plots_ice": "", "plots_lnd": "", "plots_ocn": ""}
-
-    c = {
-        "plot_names": ["a"],
-        "plots_original": "gets_overwritten",
-        "atmosphere_only": False,
-    }
-    c.update(base)
-    determine_components(c)
-    assert c["plots_original"] == ["a"]
-    assert c["use_atm"] == True
-    assert c["use_ice"] == False
-    assert c["use_lnd"] == False
-    assert c["use_ocn"] == False
-    assert c["plots_atm"] == "None"
-    assert c["plots_ice"] == "None"
-    assert c["plots_lnd"] == "None"
-    assert c["plots_ocn"] == "None"
-
-    for ocn_set in ["change_ohc", "max_moc", "change_sea_level"]:
-        c = {
-            "plot_names": "",
-            "plots_original": [ocn_set],
-            "atmosphere_only": False,
-        }
-        c.update(base)
-        determine_components(c)
-        assert c["plots_original"] == [ocn_set]
-        assert c["use_atm"] == True
-        assert c["use_ice"] == False
-        assert c["use_lnd"] == False
-        assert c["use_ocn"] == True
-        assert c["plots_atm"] == "None"
-        assert c["plots_ice"] == "None"
-        assert c["plots_lnd"] == "None"
-        assert c["plots_ocn"] == "None"
-
-    c = {"plot_names": "", "plots_original": ["a"], "atmosphere_only": True}
-    c.update(base)
-    determine_components(c)
-    assert c["plots_original"] == ["a"]
-    assert c["use_atm"] == True
-    assert c["use_ice"] == False
-    assert c["use_lnd"] == False
-    assert c["use_ocn"] == False
-    assert c["plots_atm"] == "None"
-    assert c["plots_ice"] == "None"
-    assert c["plots_lnd"] == "None"
-    assert c["plots_ocn"] == "None"
-
 
 def test_determine_and_add_dependencies():
     c: Dict[str, Any]
diff --git a/zppy/defaults/default.ini b/zppy/defaults/default.ini
index 25d2e834..d4c42a33 100644
--- a/zppy/defaults/default.ini
+++ b/zppy/defaults/default.ini
@@ -138,10 +138,6 @@ ts_subsection = string(default="")
 [tc_analysis]
 # NOTE: always overrides value in [default]
 input_files = string(default="eam.h2")
-# TODO for v3.0.0: Remove this parameter
-# DEPRECATED. No longer used.
-# The scratch directory
-scratch = string(default="")
 
 [e3sm_diags]
 # See https://e3sm-project.github.io/e3sm_diags/_build/html/master/available-parameters.html
@@ -300,10 +296,6 @@ stream_ocn = string(default="streams.ocean")
 walltime = string(default="06:00:00")
 
 [global_time_series]
-# TODO for v3.0.0: Remove this parameter
-# Deprecated; kept for backwards compatibility
-# Set to True to skip figures requiring ocean data; only affects original plots
-atmosphere_only = boolean(default=False)
 climo_years = string_list(default=list(""))
 # The color to be used for the graphs.
 color = string(default="Blue")
@@ -314,12 +306,6 @@ figstr = string(default="")
 # NOTE: always overrides value in [default]
 input_subdir = string(default="archive/ocn/hist")
 moc_file = string(default="")
-# TODO for v3.0.0: Remove this parameter
-# Deprecated; legacy name for plots_original; kept for backwards compatibility
-# plots_original replaces it with the same default.
-# So, if a cfg used the default value before, the behavior will remain the same.
-# And if a cfg set plot_names explicitally, then global_time_series.py will override plots_original.
-plot_names = string(default="")
 # The names of the plots you want displayed
 # Variable requirements:
 # net_toa_flux_restom requires RESTOM
diff --git a/zppy/global_time_series.py b/zppy/global_time_series.py
index 183de780..296f1ead 100644
--- a/zppy/global_time_series.py
+++ b/zppy/global_time_series.py
@@ -87,12 +87,6 @@ def global_time_series(config, script_dir, existing_bundles, job_ids_file):
 
 
 def determine_components(c: Dict[str, Any]) -> None:
-    # Handle legacy parameter
-    if c["plot_names"]:
-        logger.warning(
-            "warning: plot_names for global_time_series is deprecated. Setting plot_names will override the new parameter, plots_original."
-        )
-        c["plots_original"] = c["plot_names"]
     # Determine which components are needed
     c["use_atm"] = False
     c["use_ice"] = False
@@ -100,16 +94,12 @@ def determine_components(c: Dict[str, Any]) -> None:
     c["use_ocn"] = False
     if c["plots_original"]:
         c["use_atm"] = True
-        if c["atmosphere_only"]:
-            logger.warning(
-                "warning: atmosphere_only for global_time_series is deprecated. Preferred method: remove the 3 ocean plots (change_ohc,max_moc,change_sea_level) from plots_original."
-            )
         has_original_ocn_plots = (
             ("change_ohc" in c["plots_original"])
             or ("max_moc" in c["plots_original"])
             or ("change_sea_level" in c["plots_original"])
         )
-        if (not c["atmosphere_only"]) and has_original_ocn_plots:
+        if has_original_ocn_plots:
             c["use_ocn"] = True
     else:
         # For better string processing in global_time_series.bash
diff --git a/zppy/templates/global_time_series.bash b/zppy/templates/global_time_series.bash
index 4a3183eb..fed2209e 100644
--- a/zppy/templates/global_time_series.bash
+++ b/zppy/templates/global_time_series.bash
@@ -7,7 +7,7 @@
 ################################################################################
 results_dir={{ prefix }}_results
 
-zi-global-time-series --use_ocn {{ use_ocn }} --input {{ input }} --input_subdir {{ input_subdir }} --moc_file {{ moc_file }} --case_dir {{ output }} --experiment_name {{ experiment_name }} --figstr {{ figstr }} --color {{ color }} --ts_num_years {{ ts_num_years }} --plots_original {{ plots_original }} --atmosphere_only {{ atmosphere_only }} --plots_atm {{ plots_atm }} --plots_ice {{ plots_ice }} --plots_lnd {{ plots_lnd }} --plots_ocn {{ plots_ocn }} --nrows 4 --ncols 2 --results_dir ${results_dir} --regions {{ regions }} --start_yr {{ year1 }} --end_yr {{ year2 }}
+zi-global-time-series --use_ocn {{ use_ocn }} --input {{ input }} --input_subdir {{ input_subdir }} --moc_file {{ moc_file }} --case_dir {{ output }} --experiment_name {{ experiment_name }} --figstr {{ figstr }} --color {{ color }} --ts_num_years {{ ts_num_years }} --plots_original {{ plots_original }} --plots_atm {{ plots_atm }} --plots_ice {{ plots_ice }} --plots_lnd {{ plots_lnd }} --plots_ocn {{ plots_ocn }} --nrows 4 --ncols 2 --results_dir ${results_dir} --regions {{ regions }} --start_yr {{ year1 }} --end_yr {{ year2 }}
 
 echo 'Copy images to directory'
 results_dir_absolute_path={{ scriptDir }}/${results_dir}