[address-policy-wg] Routing policy for a costomer

Dear  Address working Group
IN RIPE NCC

Congratulation to you  for new year.
there are important questions about PA assignment addresses to a customer.
If a customer have a black PA IPV4 addresses (f.e: /22) from one lir with 
specified ASN which has been routed though it,and decide to reroute it from 
another ASs is it possible?IN fact there are 2 situation:

1.this customer have a block of PA IPV4 from LIR1 with ASn1 and route 
it.Simultaneously the customer decide to reroute it from another internet 
provider (ASn2).Is it possible?what policies are considered to RIPE and 
LIR1?weather the customer need to get agreement with LIR1?HOW?

2.The customer decide to disconnect internet link from LIR1 and  connect 
through another ASN but have preferred  to hold PA addresses from LIR1 and 
route it from another provider and new provider has accepted to route LIR1 
PA addresses.Is it possible reroute it without renumbering?and weather RIPE 
NCC agree to this matter ?if it need to agreement with LIR1 ,what policie 
are considered by LIR1 and their customer?

Many thanks to explain clarify this matter.

The best regards.