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4 changes: 2 additions & 2 deletions lib/citizenship/nif.rb
Original file line number Diff line number Diff line change
Expand Up @@ -3,7 +3,7 @@ module Citizenship
def self.valid_nif!(number, options = {})
strict = options.fetch(:strict, false)
id_number = strict ? number : String(number).delete(' ')
first_digit_universe = [1, 2, 5, 6, 8, 9]
first_digit_universe = [1, 2, 3, 5, 6, 8, 9]

raise NIFError.new(:size) if id_number.size != 9
raise NIFError.new(:prefix, prefixes: first_digit_universe.join(', ')) unless first_digit_universe.include?(id_number[0].to_i)
Expand All @@ -17,4 +17,4 @@ def self.valid_nif?(number, options = {})
rescue NIFError
false
end
end
end