EC Regulations and Directives relate to UK merchant ships and seafarers, and other ships operating in EU waters. 

Most time charter parties provide that charterers will provide and pay for all agents. 

A dangerous goods declaration or a marine pollutants declaration, as appropriate, or a combined dangerous goods and marine pollutants declaration, should be presented to the master or the ship operator. The declaration can be made on a Dangerous Goods/Marine Pollutants Note.

5 years, subject to surveys as in the last answer.

In many cases, no. 

In MGN 20 and in Chapter 1 of the Code of Safe Working Practices for Merchant Seamen.

If a qualified compass adjuster is unavailable and the master considers it necessary then adjustments may be made by a person holding a Certificate of Competency (Deck Officer) Class 1 (Master Mariner). The compass must be re-adjusted by a qualified compass adjuster at the next available opportunity. (Para. 12, Annex 13 (Magnetic Compasses) to the MCA's SOLAS V 2002 publication)

The same form, and containing the same provisions, as a standard Running or Voyage Agreement, except that the name of each ship to which it relates is entered on the outer cover (ALC 1). The original agreement is kept ashore (e. g. in the personnel office), and each ship carries a copy agreement which must be certified by the ship's master as a true copy and must specify the address where the original is kept, as well as the name of the person keeping it.

MGN 95 (Training and Certification Guidance Part 5).

(1) Implementing the ISPS Code for all UK-registered cargo ships;

MGN 93 (Training and Certification Guidance Part 3). This gives guidance on application of The Merchant Shipping (Training and Certification) Regulations 1997, which implement the requirements of STCW 95.

Writing clear, simple, unambiguous instructions in, for example, Master's Standing Orders and Bridge Night Order Books. Master's orders should not conflict with other documented procedures in the SMS.

On learning that their ships have not been requisitioned and that one or more other ships have been requisitioned and are complying with the requisition. The decision (to continue on their voyages) must, if possible, be communicated to the other requisitioned ships and to the SAR service.

The relevant IMO Circular (STCW. 7/Circ.18, published 22 May 2012) states: "Training and assessment in the use of ECDIS is not required for those who serve exclusively in ships not fitted with ECDIS. These limitations will be reflected in the endorsement issued to the seafarer concerned."