diff --git a/docs/_cosmic_ray_removal.rst b/docs/_cosmic_ray_removal.rst
index 4a60e841..1f7c3814 100644
--- a/docs/_cosmic_ray_removal.rst
+++ b/docs/_cosmic_ray_removal.rst
@@ -46,4 +46,9 @@ methods.
 Asymetric binnings have not been tested but the pipeline only takes in
 consideration the dispersion axis to decide. This does not mean that the spatial
 binning does not impact the performance of any of the methods, we just don't
-know it yet.
\ No newline at end of file
+know it yet.
+
+.. note::
+
+  The prefix ``c`` is added to all the comparison lamps, despite they not being
+  affected by cosmic rays.
\ No newline at end of file
diff --git a/docs/_observing.rst b/docs/_observing.rst
index 708f4a64..9477c85c 100644
--- a/docs/_observing.rst
+++ b/docs/_observing.rst
@@ -49,7 +49,8 @@ Observing for Radial Velocity
 
 Radial velocity measurements are possible with the |goodman HTS| but you have
 to be careful. A very detailed description of the procedures and what you can
-expect was prepared and is available  `HERE <http://www.ctio.noao.edu/soar/sites/default/files/GOODMAN/goodman_rv.pdf>`_.
+expect was prepared and is available  `here <https://noirlab.edu/science/sites/default/files/media/archives/documents/scidoc0489.pdf>`_
+and `here <https://noirlab.edu/science/sites/default/files/media/archives/documents/scidoc0490.pdf>`_ .
 
 Please read it carefully so you don't find any surprises when trying to reduce
 your data.
diff --git a/docs/install.rst b/docs/install.rst
index c214073a..c13f5897 100644
--- a/docs/install.rst
+++ b/docs/install.rst
@@ -39,8 +39,9 @@ This installation was tested on MacOS High Sierra.
 
 2. Download Anaconda or Miniconda
 
-  ``curl https://repo.continuum.io/miniconda/Miniconda3-latest-MacOSX-x86_64.sh --output miniconda.sh``
+  ``curl https://repo.anaconda.com/miniconda/Miniconda3-latest-MacOSX-arm64.sh --output miniconda.sh``
 
+If you have a different processor like intel, you can search miniconda installer url for your system.
 
 Common Steps
 ************
diff --git a/goodman_pipeline/core/core.py b/goodman_pipeline/core/core.py
index b9926bd2..c9115669 100644
--- a/goodman_pipeline/core/core.py
+++ b/goodman_pipeline/core/core.py
@@ -302,7 +302,7 @@ def call_cosmic_rejection(ccd,
             log.info('Setting cosmic ray rejection method to:'
                      ' {:s}'.format(method))
 
-    if ccd.header['OBSTYPE'] == 'COMP' and method != 'none':
+    if ccd.header['OBSTYPE'] in ['COMP', 'ARC'] and method != 'none':
         log.info("Changing cosmic ray rejection method from '{:s}' to 'none'"
                  " for comparison lamp. Prefix 'c' will be added "
                  "anyway.".format(method))
@@ -317,11 +317,11 @@ def call_cosmic_rejection(ccd,
                     'the mask use --keep-cosmic-files')
 
         if not os.path.isfile(os.path.join(red_path, 'dcr.par')):
-            _create = GenerateDcrParFile()
+            generate_dcr_parameters_file = GenerateDcrParFile()
             _instrument = ccd.header['INSTCONF']
             _binning, _ = ccd.header['CCDSUM'].split()
 
-            _create(instrument=_instrument, binning=_binning, path=red_path)
+            generate_dcr_parameters_file(instrument=_instrument, binning=_binning, path=red_path)
 
         #out_prefix = prefix + out_prefix #Move line here
 
diff --git a/goodman_pipeline/core/tests/test_core.py b/goodman_pipeline/core/tests/test_core.py
index 72811f15..3185d313 100644
--- a/goodman_pipeline/core/tests/test_core.py
+++ b/goodman_pipeline/core/tests/test_core.py
@@ -511,6 +511,22 @@ def test_call_cosmic_rejection_comp_lamp(self):
                          ccd.header['GSP_FNAM'])
         self.assertEqual('none', ccd.header['GSP_COSM'])
 
+    def test_call_cosmic_rejection_arc_lamp(self):
+        self.ccd.header.set('OBSTYPE', value='ARC')
+        prefix = 'new_'
+        ccd, out_prefix = call_cosmic_rejection(ccd=self.ccd,
+                                                image_name=self.file_name,
+                                                out_prefix=self.out_prefix,
+                                                red_path=self.red_path,
+                                                keep_files=True,
+                                                prefix=prefix,
+                                                method='dcr',
+                                                save=True)
+        self.assertEqual(prefix + self.out_prefix, out_prefix)
+        self.assertEqual(f"{prefix}{self.out_prefix}_{self.file_name}",
+                         ccd.header['GSP_FNAM'])
+        self.assertEqual('none', ccd.header['GSP_COSM'])
+
     def test_call_cosmic_rejection_not_implemented_error(self):
         prefix = 'new_'
         self.assertRaises(NotImplementedError,