question: with the rule changes by 1. january 2003 have sections had a direct impact on the management of the company.
Capitalize this past sentence correctly.
A: With the rule changes by 1. January 2003 have sections had a direct impact on the management of the company.

question: electrical insulators (excl. those of glass or ceramics and insulating fittings)
Capitalize this past sentence correctly.
A: Electrical insulators (excl. those of glass or ceramics and insulating fittings)

question: then came spring 2013.
Capitalize this past sentence correctly.
A: Then came spring 2013.