To obtain a Libyan visa, you’ll need an invitation from a Libyan tour company. The tour company will then send you a visa number. Make sure you have an Arabic-language confirmation to smooth the process with airlines, the embassy or immigration officials. You can collect your visa either from the Libyan embassy in your home country or at your entry point to Libya, but specify which you prefer when making contact with the tour company. The process generally takes two weeks, but allowing for a month is safer. Visas are valid for 30 days from the date of entry.
Existe também um tópico no fórum Thorn Tree sobre o atual (final de 2011) status de obtenção de visto. Parece que os consulados líbios atualmente não estão emitindo nenhum visto.