diff --git a/grizli/aws/visit_processor.py b/grizli/aws/visit_processor.py
index 16510a9b..02031a3c 100755
--- a/grizli/aws/visit_processor.py
+++ b/grizli/aws/visit_processor.py
@@ -1574,7 +1574,7 @@ def check_jwst_assoc_guiding(assoc):
 ALL_FILTERS = ['F410M', 'F467M', 'F547M', 'F550M', 'F621M', 'F689M', 'F763M', 'F845M', 'F200LP', 'F350LP', 'F435W', 'F438W', 'F439W', 'F450W', 'F475W', 'F475X', 'F555W', 'F569W', 'F600LP', 'F606W', 'F622W', 'F625W', 'F675W', 'F702W', 'F775W', 'F791W', 'F814W', 'F850LP', 'G800L', 'F098M', 'F127M', 'F139M', 'F153M', 'F105W', 'F110W', 'F125W', 'F140W', 'F160W', 'G102', 'G141']
 
 
-def process_visit(assoc, clean=True, sync=True, max_dt=4, combine_same_pa=False, visit_split_shift=1.2, blue_align_params=blue_align_params, ref_catalogs=['LS_DR9', 'PS1', 'DES', 'NSC', 'GAIA'], filters=None, prep_args={}, fetch_args={}, get_wcs_guess_from_table=True, master_radec='astrometry_db', align_guess=None, with_db=True, global_miri_skyflat=None, miri_tweak_align=False, tab=None, other_args={}, do_make_visit_mosaic=True, visit_mosaic_kwargs={}, expinfo_kwargs={}, **kwargs):
+def process_visit(assoc, clean=True, sync=True, s3_acl="public-read", max_dt=4, combine_same_pa=False, visit_split_shift=1.2, blue_align_params=blue_align_params, ref_catalogs=['LS_DR9', 'PS1', 'DES', 'NSC', 'GAIA'], filters=None, prep_args={}, fetch_args={}, get_wcs_guess_from_table=True, master_radec='astrometry_db', align_guess=None, with_db=True, global_miri_skyflat=None, miri_tweak_align=False, tab=None, other_args={}, do_make_visit_mosaic=True, visit_mosaic_kwargs={}, expinfo_kwargs={}, **kwargs):
     """
     Run the `grizli.pipeline.auto_script.go` pipeline on an association defined
     in the `grizli` database.
@@ -1590,7 +1590,11 @@ def process_visit(assoc, clean=True, sync=True, max_dt=4, combine_same_pa=False,
     sync : bool
         Sync results to `grizli` S3 buckets and database (requires write 
         permissions).
-    
+
+    s3_acl : str
+        S3 access control list (ACL) type for synced files (e.g., "public-read",
+        "private")
+
     prep_args : dict
         Keyword arguments to pass in `visit_prep_args`
     
@@ -1815,7 +1819,7 @@ def process_visit(assoc, clean=True, sync=True, max_dt=4, combine_same_pa=False,
                   --include "Prep/*skyflat.*" \
                   --include "Prep/*angles.*" \
                   --include "*fail*" \
-                  --include "RAW/*[nx][tg]" """
+                  --include "RAW/*[nx][tg]" --acl {s3_acl}"""
         
             os.system(cmd)
             print('\n# Sync\n' + cmd.replace('     ', '') + '\n')
@@ -1824,7 +1828,7 @@ def process_visit(assoc, clean=True, sync=True, max_dt=4, combine_same_pa=False,
         files = glob.glob(f'{assoc}*.*')
         for file in files:
             os.system(f'aws s3 cp {file} ' + 
-                      f' s3://grizli-v2/HST/Pipeline/{assoc}/')
+                      f' s3://grizli-v2/HST/Pipeline/{assoc}/ --acl {s3_acl}')
     
     if (clean & 2) > 0:
         print(f'rm -rf {assoc}*')