Index: import/taxonomy_csv.import.api.inc
===================================================================
--- import/taxonomy_csv.import.api.inc	(revision 4693)
+++ import/taxonomy_csv.import.api.inc	(working copy)
@@ -721,6 +721,9 @@
     'terms_count' => $terms_count,
   );

+  // 0. Allow third parties to customize what we've read from file.
+  drupal_alter('taxonomy_csv_line_import', $line, $options);
+
   // 1. Validate and clean line.
   if ($options['check_line']) {
     $line = _taxonomy_csv_line_import_clean(
Index: taxonomy_csv.vocabulary.api.inc
===================================================================
--- taxonomy_csv.vocabulary.api.inc	(revision 4693)
+++ taxonomy_csv.vocabulary.api.inc	(working copy)
@@ -28,6 +28,9 @@
     'weight'       => 0,
   );

+  // Allow third party modules to change defaults.
+  drupal_alter('taxonomy_csv_vocabulary_create', $vocabulary);
+
   $result = taxonomy_vocabulary_save($vocabulary);

   return $vocabulary;